Determine the pressure change when a constant volume of gas at 1.00 atm is
heated from 293 Kelvin to 303 Kelvin
Hurry please

Gasohol is a blend of gasoline and ethanol. To determine the maximum work that can be obtained by burning 1.003 mol of C2H5OH at 25°C and 1 atm, the Gibbs free energy equation can be utilized. What is Gibbs free energy equation? Gibbs free energy equation is a thermodynamic equation that quantifies the maximum quantity of work that may be obtained during a chemical reaction. T

he equation is as follows: ΔG = ΔH - TΔSThe values of ΔH and ΔS are calculated from thermodynamic tables or by calculating the enthalpy and entropy of the products and reactants, and the temperature, T, is usually specified in Kelvin. The change in Gibbs free energy, ΔG, is the maximum amount of energy that can be obtained from the reaction in the form of useful work if the reaction takes place at constant pressure and temperature. The reaction will proceed spontaneously if ΔG is negative. And if ΔG is positive, the reaction will not take place spontaneously. The solution to this problem is shown below:

First, let's figure out how much heat is produced when one mole of C2H5OH is burnt.ΔHrxn = [2(moles of CO2)(-393.5 kJ/mol) + 3(moles of H2O)(-285.8 kJ/mol)] - [(moles of C2H5OH)(-277.7 kJ/mol)]ΔHrxn = [2(2.006 mol)(-393.5 kJ/mol) + 3(3.009 mol)(-285.8 kJ/mol)] - [1.003 mol(-277.7 kJ/mol)]ΔHrxn = -2043.5 kJ/mol. Now, we'll figure out the entropy change for the reaction.ΔSrxn = [2(moles of CO2)(213.8 J/mol-K) + 3(moles of H2O)(69.9 J/mol-K)] - [(moles of C2H5OH)(160.7 J/mol-K)]ΔSrxn = [2(2.006 mol)(213.8 J/mol-K) + 3(3.009 mol)(69.9 J/mol-K)] - [1.003 mol(160.7 J/mol-K)]ΔSrxn = -104.3 J/mol-KThe temperature in Kelvin is 25°C.273 + 25 = 298 KΔG = ΔH - TΔSΔG = -2043.5 kJ/mol - (298 K)(-104.3 J/mol-K)/1000ΔG = -2032.6 kJ/mol. Therefore, the maximum work that can be obtained by burning 1.003 mol of C2H5OH is 2032.6 kJ/mol, which is the value of ΔG.

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Answer:

A

Explanation:

The answer is A

this also need to be 20 characters

Answer:

A. water freezes

Explanation:

i wanted to answer sorry

According to Avogadro's number, there are 23.72×10²³ atoms of hydrogen atoms are found in 3.94 mol of NH₅.

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number, on substitution number of atoms= 3.94×6.023×10²³=23.72×10²³  atoms.

Thus, there are 23.72×10²³ atoms of hydrogen atoms are found in 3.94 mol of NH₅.

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Answer:

negative

Explanation:

Answer:

Mammals do not have instincts, so they must learn all their behaviors from their parents in order to survive.

Sea turtles must survive on their own, while mammals spend time with their parents and learn how to survive as they grow.

Sea turtles are less intelligent than mammals and, thus, cannot learn new behaviors from their parents.

Explanation:

Sea turtles rely on instincts more than mammals do, beacuse to get food for their survival.

Insticts are the natural impulse or motivation which are present from the inborn time to perform some functions in order to react in some specific external stimuli.

Mammals do not react impulsively in any external conditions because they have members or friends from their famliy side, who will teach them how to behave or react. But turtles didn't have that special person, so they do work rely on instincts to get food or many other purposes.

Hence, to survive sea turtles rely on instincts more than mammals do.

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Answer:

The second option

Answer:

Intent to cause harm

Personal computer is designed for the use of an individual to watch movies, surf the Internet, send e-mail, type a letter, or even compose your very own song.

2. Desktop computer is a type of computer that has greater power, storage, and versatility compared to other types of computers for personal use.

3. Laptop computer refers to the computer that combines all the components of a personal computer and is easy to carry around.

4. Ultrabook is a computers are lighter than laptops but with the same processing power and features.

5. Tablet computer is operated by using a touch screen that has a virtual keyboard, or an electronically-sensitive pad where users handwrite their notes.

Personal computer (PC) is a general term that refers to a computer that can be used by an individual for a variety of tasks such as watching movies, browsing the internet, sending emails, typing letters, and even composing music.

Therefore, Desktop computers are a type of personal computer that are designed for use at a fixed location. They have greater power, storage, and versatility compared to other types of computers for personal use. They generally have a separate monitor, keyboard, and processing unit, and are typically used for more demanding tasks such as gaming, video editing, and graphic design.

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Water 2.0 is/was making water safer to drink. Physical and chemical methods described in the book that have been and are used to sanitize drinking water are ultraviolet light, ozone treatment, chlorine treatment, reverse osmosis, and activated carbon filtration.

The primary aim of Water 2.0 is to improve water treatment technologies by bringing together innovative technologies and financing to overcome aging infrastructure and inadequate funding. The project aims to create smart water systems, monitor water quality, and enable quick and reliable response in the event of any contamination. Physical and chemical methods have been employed to make drinking water safer. The physical methods include methods such as reverse osmosis and activated carbon filtration, which help in the removal of large particles and chemical contaminants.

Reverse osmosis is a physical filtration method used in drinking water treatment processes, which removes contaminants such as dissolved salts, inorganic impurities, and organic matter from water.

Chemical methods include methods such as chlorination, ozone treatment, and ultraviolet light. Chlorination is the most commonly used disinfection method for drinking water, and it's effective in destroying harmful bacteria and viruses that can be found in water. Ozone treatment is another powerful disinfection method that is used to treat drinking water. It's effective in removing pollutants such as bacteria, viruses, and organic matter from water.

Ultraviolet light, which is another disinfection method, is used in drinking water treatment processes to destroy bacteria and viruses. Water treatment is necessary to make water safe for human consumption. The treatment involves physical and chemical methods that help in the removal of contaminants and harmful substances from the water.

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The various field of science include the following;

1. Serology.

2. Bioinformatics.

3. Toxicology.

4. Biotechnology.

5. Genetics.

6. Epigenomics.

7. Biochemistry.

8. Taphonomy.

Science is the interest and application of information and understanding of the normal and social world taking after a precise strategy based on prove.

1. Serology: The study of blood.

2. Bioinformatics: The development of digital storage and technology for use in bioscience applications.

3. Toxicology: The study of poisons.

4. Biotechnology: The study and use of biological structures and processes for industrial purposes.

5. Genetics: The scientific study of heredity.

6. Epigenomics: The study of the effects and interaction of the expression of genes.

7. Biochemistry: The study of the chemistry of organisms.

8. Taphonomy: The study of decomposition of bodies after death.

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Answer:

0.446

Explanation:

ccu =  3035.655 / 104 g x (98.9 - 33.5)  = 0.446 J / g 0 C

The experimental specific heat capacity of the copper is 0.446 J/g°C.

\Solution:

CCU =  3035.655 / 104 g x (98.9 - 33.5)

       = 0.446  J/g°C.

The method for particular heat ability, C, of a substance with mass m, is C = Q /(m ⨉ ΔT).

wherein Q is the strength added and ΔT is the exchange in temperature.

The unique heat capability is defined as the quantthe ity of heat (J) absorbed consistent with unit mass (kg) of the cloth when its temperature will increase 1 k (or 1 °C), and its units are J/(kg k) or J/(kg °C).

Particular heat is defined by the quantity of heat had to raise by the temperature of 1 gram of a substance 1 diploma CelsiuwhichC). Water has a high precise warmth, that means it takethe s more energy to boom the temperature of water as compared to different materials.

A high particular warmness of a substance means that a big quantity of warmth is required to raise the temperature of the substance. Water covers the Earth's surface and its highly unique warmth performs a completely essential position as it can soak up a whole lot of warmness without a substantial upward push inside the temperature.

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The best set of reagents to achieve the ph-co2h => ph-come will be Br2, CH2N2.

A material or ingredient supplied to a system to trigger a chemical reaction or check to see whether one occurs is known as a reagent as well as an analytical reagent. Reactant refers to a substance that is consumed during a chemical reaction. The phrases reactant and reagent just aren't frequently used interchangeably.

Diazomethane reacts swiftly and extremely effectively, producing just N2 as a byproduct, making it an appealing methylating agent for carboxylic acids including phenols.

Therefore, the best set of reagents to achieve the ph-co2h => ph-come will be Br2, CH2N2.

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Equipment not kept in your assigned lab drawer is called: Shared equipment

Departmental equipment are the set of things that is to be used by all the people of department and not necessarily have to be a research equipment. This kind of equipment mostly include some simple machineries and all purpose equipment that can also be used out of the laboratory.

Lab equipment are strictly research related things but can be used for various projects and not strictly used for a particular project. This kind of equipment can be used by research scholars as well as undergraduate or postgraduate student group.

Community equipment are also research related thing but unlike Lab equipment it is used by a group of students or research scholars who are involved in same project or similar kind of project and can't be shared commonly among all the students.

A shared equipment is research related thing but unlike Community equipment it is not shared among the scholars of similar kind of different projects. Shared equipment is assigned for a single group for a particular project and can be shared among the group members only. No members of the group can acquire it all alone.

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Density function: f(x) = 1/10, for 110 ≤ x ≤ 120, and f(x) = 0 otherwise.

Mean: μ = 115.

Variance: σ^2 = 25/3.

Probability: P(112 < X < 115) = 0.3.

Given that the melting point X is uniformly distributed over the interval [110, 120], we can find the density function, mean, variance, and probability as follows:

1. Density function:

Since X is uniformly distributed, the density function f(x) is constant within the interval [110, 120] and zero outside that interval. To find the density function, we need to determine the height of the constant density.

The total length of the interval is 120 - 110 = 10.

Since the density function is constant, the area under the density function curve must be equal to 1.

Therefore, the height of the constant density is 1 divided by the length of the interval: f(x) = 1/10, for 110 ≤ x ≤ 120, and f(x) = 0 otherwise.

2. Mean:

The mean (μ) of a uniform distribution is the average of the endpoints of the interval. In this case, the mean is (110 + 120) / 2 = 115.

3. Variance:

The variance (σ^2) of a uniform distribution is calculated using the formula: σ^2 = (b - a)^2 / 12, where a and b are the endpoints of the interval. In this case, the variance is (120 - 110)^2 / 12 = 10^2 / 12 = 100/12 = 25/3.

4. Probability:

To find P(112 < X < 115), we need to calculate the area under the density function curve between the points 112 and 115.

Since the density function is constant within the interval [110, 120], the probability is equal to the ratio of the length of the interval [112, 115] to the length of the entire interval [110, 120].

The length of the interval [112, 115] is 115 - 112 = 3.

The length of the entire interval [110, 120] is 120 - 110 = 10.

Therefore, P(112 < X < 115) = (3 / 10) = 0.3.

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Answer:

Under the concept of popular sovereignty, the people of each territory would decide whether or not slavery would be permitted.

Explanation:

Answer:

Pulverized Limestone

Explanation:

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In the allyl cation, all the bond lengths are equal and the positive charge is delocalized over all the three carbon atoms.

The allyl cation has the formula C2H5+. In the allyl cation, the positive charge is delocalized over the three carbon atoms as shown in the image attached. Hence, relevant resonance structures can be proposed for the allyl cation.

The bond lengths in the allyl cation are intermediate between the bond lengths of double bonds and single bonds. All the bond lengths are equal.

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Answer:

c. 7.00

Explanation:

The neutralization reaction between NaOH and HCl is the following:

NaOH + HCl → NaCl + H₂O

NaOH dissociates into OH⁻ ions and HCl dissociates into H⁺ ions. At the equivalence point, the total number of moles of OH⁻ is neutralized with the moles of H⁺ added:

OH ⁻ + H⁺ ⇄ H₂O

Moles of NaOH = M x V = 0.025 L x 0.30 mol/L = 7.5 x 10⁻³ mol OH⁻

Since NaOH is a strong base, the moles of NaOH is equal to the moles of OH⁻.

Moles of HCl = M x V = 0.025 L x 0.30 mol/L = 7.5 x 10⁻³ mol H⁺

As we can see, the moles of HCl added are equal to the moles of H⁺ because HCl is a strong acid.

At the equivalence point: 7.5 x 10⁻³ mol OH⁻ =  7.5 x 10⁻³ mol H⁺ (the total amount of OH⁻ reacted with H⁺)

Thus, in the medium we have only the H⁺ from the water equilibrium:

Kw = [H⁺] [OH⁻] = 1 x 10⁻¹⁴

[H⁺] = 1 x 10⁻⁷

⇒ pH = -log [H⁺] = -log (1 x 10⁻⁷) = 7

Therefore, the correct answer is c. 7.00

The intermolecular forces in HF, \(CCl_4\) and \(CH_3Cl\) molecules are hydrogen bonding, dispersion forces and dipole-dipole interactions respectively.

Intermolecular forces, such as the electromagnetic forces of attraction or repulsion that act between atoms in a molecule and other kinds of nearby particles, such as atoms or ions, mediate interactions between molecules.

The attractive forces that occur between molecules are known as intermolecular forces. They control a number of bulk characteristics, including the solubilities (miscibilities) of compounds and their melting and boiling temperatures.

Intermolecular forces may be divided into four categories: hydrogen bonding, London dispersion forces, ion-dipole, and dipole-dipole.

HF has a hydrogen bond, also known as an H-bond, is an electrically charged attraction between an electronegative atom containing a single pair of electrons, known as the hydrogen bond acceptor, and a hydrogen (H) atom that is covalently attached to a more electronegative "donor" atom or group.

\(CCl_4\) has London dispersion forces which is the least powerful intermolecular force. When the electrons in two nearby atoms hold positions that cause the atoms to temporarily form dipoles, the consequence is the London dispersion force, a transient attractive attraction.

\(CH_3Cl\) has dipole-dipole interactions where molecules having permanent dipoles are drawn to one another electrostatically; for example, the positive end of one molecule will attract the negative end of another, and so forth, eventually causing the molecules to align.

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The molar concentration of acetic acid in the vinegar is 0.611M

Molar concentration is the most convenient method of expressing the concentration of a solute in the given solution. Molarity is the number of moles of the solute dissolved per liter of the solution.

Thus M = mol per L.

All mole calculations will determine the amount in moles of the solution, for which it is the molar concentration.

Given,

Concentration of NaOH = 0.1906M

Volume of NaOH = 32.1 ml

Volume of acetic acid = 10 ml

During neutralization, the number of moles of acid is the same as the number of moles of base.

concentration of NaOH × Volume = Concentration of acetic acid × volume

0.1906 × 32.1 = Concentration of acetic acid × 10

Concentration of acetic acid = 0.611 M

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Answer:

You can find how many valence electrons an atom has by looking at what group the element is in. For example, oxygen is in group 6... so therefore, it has 6 valence electrons.

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Answer:

coefficient green : 2.4865

exponent (yellow) : 16

Explanation:

Answer:1 Liter (L) is equal to 1000 milliliters (mL). To convert liters to mL, multiply the liter value by 1000. For example, to convert 2 liters to mL, multiply 2 by 1000, that makes 2000 mL is 2 L.

Explanation:

Adenosine has a nominal mass of 267. The mass of a molecule is equal to the sum of its constituent atoms' atomic masses. Adenine molecules are joined to ribose sugar molecules to form the nucleoside known as adenosine.

Ribose has an atomic mass of 132.0 amu, while adenine is 135.0 amu in size. As a result, adenosine has a total nominal mass of 267 amu. By transporting adenine nucleotides, which are involved in the transfer of energy in the form of adenosine triphosphate (ATP), adenosine serves to control the energy generation in cells.

Adenosine also has a role in a variety of biological processes, including cell differentiation, signal transduction, and gene expression. The control of the cardiovascular system depends on adenosine.

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Cody's vehicle accelerates by 3 m/s2 (northward) in the 15 seconds it takes to go from 0 m/s to 45 m/s (northward).

Newton's second law, which states that the force acting on a body is equal to the mass of the body, is the fundamental equation of motion in classical mechanics acceleration an of its center of mass, or F = ma.

When the final velocity is 45 m/s (northward), the beginning velocity is 0 m/s, and the time is 15 seconds, we can calculate the acceleration using the formula acceleration = (final velocity - initial velocity) / time.

When these values are added to the formula, we obtain:

acceleration = (45 m/s - 0 m/s) / 15

acceleration = 3 m/s² (northward).

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Answer: Both A and C

Explanation:

A combinations of reactants to form only water and their respective salts will be Diluted acids and metal hydroxides, and Dilutions of acids and metal oxides. This is further explained below.

Generally, reactants are simply defined as materials that enters and is changed during a chemical reaction.

In conclusion, Dilutions of acids and metal oxides combine to form only water and their respective salts.

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Answer: by your body

Explanation

In designing the experiment, the researchers used Y32P-ATP.

Adenosine triphosphate (ATP) is an organic substance and a hydro-trope that provides energy for a variety of functions in

Researchers used Y32P-ATP Because the Y-phosphate of ATP is used for phosphoryl transfer by kinases. As a result, Y32P-ATP is required for the experiment.

Hence the used ATP is Y32P-ATP.

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Answer:

Every atom has no overall charge (neutral). This is because they contain equal numbers of positive protons and negative electrons. These opposite charges cancel each other out making the atom neutral.

Explanation: