For  generic reaction, determine the value of ∆H2 in terms of ∆H1. A ----------> B + 2 C    ∆H11/2 B + C --------> 1/2A    ∆H2 = ?

Q: Estimate the boiling point of an unknown substance in deg C if the latent heat of vaporization of…

A: We have to predict the boiling point.

Q: 1. In which of the following cases do you observe a spontaneous process? А. AS = 10 J/K, AS =-10 J/K…

A: We are authorised to solve only one question at a time. Since you have not mentioned, we are solving…

Q: ) True or False?  If false, correct the statement.        a) The entropy of a substance increases…

A: The entropy of a substance increases when a substance changes from liquid to vapor at any…

Q: For each pair of substances choose the one with the higher standard molar entropy and explain your…

A: a) NaNO3(s); NaNO3(l) NaNO3(l) will have higher standard molar entropy than NaNO3(s) Because in…

Q: gasoline (C8H18) in a car engine, results in a large amount of energy released as heat. 2 C8H18 (l)…

A: Entropy is the degree of randomness and disorder.  As number of gaseous moles in product are higher…

Q: Classify the possible combinations of signs for a reaction's Δ?ΔH and Δ?ΔS values by the resulting…

A: The Gibb’s free energy change is expressed as:

Q: 1-Determine which term best matches each description below. Choose from... Exergonic, Entropy ,…

A: The free difference between the products and reactants is known as the free energy change of a…

Q: Predict which substance has greater molar entropy. Explain.(a) CH3OH(l) or C2H5OH(l)             (b)…

A: Standard molar entropy termed as the degree of randomness oof one mol of a sample under standard…

Q: Describe Gibbs Free Energy?

A: The second law of thermodynamics is introduced to explain the spontaneity or feasibility of…

Q: 8) For which of the following will the entropy of the system increase? A) reaction of magnesium with…

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Q: After a snowfall the snow compacts and when the sun shines on it, it sublimes readily.  What is the…

A: Given :  After a snowfall the snow compacts and when the sun shines on it, it sublimes readily.…

Q: Automobile airbags contain solid sodium azide, NaN,, that reacts to produce nitrogen gas when…

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Q: For each pair of substances choose the one with the higher standard molar entropy and explain your…

A: The measurement of disorderness is especially done by entropy. Higher the disorderness (randomness),…

Q: Which substance would have the greatest standard molar entropy? O N2(g) NO2(g) O N2(1) O NO2(1)

A: Entropy (S): entropy dependence on randomness of a system . For example randomness order…

Q: At body temperature, many proteins have a well-defined structure that is essential to their…

A: To find the sign of enthalpy and entropy of denaturation of protein.

Q: Which process is necessarily driven by an increase in the entropyof the surroundings?a. the…

A: Entropy is defined as the measure of disorderliness in the system. The formula for the entropy of…

Q: (Q73) If both the enthalpy change and the entropy change for a certain process have negative values,…

A: We know that ∆G=∆H-T∆S Where ∆G is gibbs energy. ∆H is enthalpy chnagr and ∆S is entropy change  For…

Q: For each pair of substances, choose the one that you expect to have the higher standard molar…

A: The species entropy is dependent on the species molar mass, species molecular complexity as well as…

Q: Which of the following substances exhibits the greatest standard molar entropy, So? Select one: H2…

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Q: Which one of the following would be expected to have the lowest standard molar entropy, S°, at 25°C?…

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Q: W(s) W(1) AH fu = 35 kJ/mol; AS" fus = 10 J/(mol K) The chemical equation and thermodynamic data for…

A: Introduction :  We have to tell that the tungsten will melt or not .

Q: 8. Predict the sign of the change in entropy for the condensation of steam to liquid water. 9.…

A: Entropy means randomness. The higher the randomness of the system, the higher will be its entropy.…

Q: Describe the spontaneity and entropy of the processes. Sublimation of naphthalene balls as…

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Q: Consider the following reaction at 298 K.   2Al(s)+3Cl2(g)⟶2AlCl3(s)Δ?∘=−1408.4…

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Q: What is the change in entropy of 100 g of ice at 0 degrees C as it is melted at 0 degrees C, heated…

A:

Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…

A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are…

Q: 37. Without doing any calculations, determine the signs of AS and ASur for each chemical reaction.…

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Q: 4. For each pair of substances, circle the one with the higher standard molar entropy (S°) at 25 °C.…

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Q: What is the entropy change when 315 J of energy is reversibly transferred to a sample of water at…

A: Entropy change of a system for reversible process is given by  where ΔS = entropy change  Q = heat…

Q: Which one of the following choices shows the gaseous molecules ranked from lowest (on the left) to…

A: Given options:  1. Ar, Kr, He, Ne  2. Kr, Ar, Ne, He  3. He, Ne, Ar, Kr  4. He, Ne, Kr, Ar

Q: Rank the following substances in order of decreasing standard molar entropy (S°). Rank the gases…

A: Molar entropy: The standard Molar entropy of a substance is the entropy content of one mole of a…

Q: Spontaneous combustion of gasoline (C8H18) in a car engine, results in a large amount of energy…

A: Given: Combustion of C8H18 is spontaneous. The combustion reaction of C8H18 releases high amount of…

Q: Arrange H202, H2S and H20 in order of decreasing molar entropy

A: WE HAVE TO ARREANGE IN DECREASING ORDER OF MOLAR ENTROPY.

Q: Using standard enthalpies of formation and standard molar entropies, determine the normal boiling…

A: The equation for the vaporization of water – CH3OH l ↔CH3OH g At equillibrium, ∆G∘ =0∆G∘ =∆H∘ -T∆S∘…

Q: 5. Which of the following substances has the greatest standard molar entropy at 25 °C? a) Na (s) b)…

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Q: 11.Describe the conditions at which the following thermochemical equations are  spontaneous. If you…

A: Chemical Reaction are almost invariably accompanied by energy changes which ordinarily, appear in…

Q: Which of the following substances has the lowest absolute molar entropy at 25°C?   Group of answer…

A: The substances given are HCl(l), HCl (g), HCl (s), HBr (g) and HI (g).

Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…

A: Since you have a question with multiple parts, we can solve only first three parts for you. If you…

Q: estimate the temperature that one would have to heat 1 L of water to, starting at 0 °C, reversibly,…

A: The given problem can be solved by using the formula given below as; ∆S=2.303 n Cp log T2T1…

Q: Indicate whether each statement is true or false. If a system undergoes a reversible process, the…

A: Given: Reversible process is a process which can be reversed back to its initial state after…

Q: A sample consisting of 1.00 mol of a monatomic ideal gas at 30 ℃ is compressed reversibly and…

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Q: Consider the decomposition of dinitrogen tetroxide, N2O4, into nitrogen dioxide, NO2.  N2O4…

A: The balanced reaction given is, => N2O4 (g) → 2 NO2 (g) The thermodynamic data given is,…

Q: Pick the substance from each set that would have the largest molar entropy. Set 1 Set 2 CH-(g) or…

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Q: reaction Ag2O → 2Ag(s) + 12O2(g), ΔH = 30.56 KJ mol− and ΔS = 66 J K−1 mol at 1 atmosphere pressure.…

A: □H = 30.56 kJ/mol □S = 66 J/K-mol □G = □H - T □S

Q: Given the values of ΔH and ΔS, which of the following changes will be spontaneous at constant T and…

A: Given :  ΔH = 125 kJ ΔS = 15.0 J/K T = 300. K

Q: What is entropy, S, and how is entropy related to spontaneous change?

A: Entropy is defined as,  A measure of randomness or disorder of a system.      OR  The amount of heat…

Q: Which Substance would have the greatest standard molar entropy?   N2(I) NO2(I) NO2(g) N2(g)

A: To find: The substance having the greatest standard molar entropy N2 (I) NO2 (I) NO2 (g) N2 (g)

Q: What is the sign of delta H and delta S for the reaction X(g) + Y(g) = XY(g) and state under what…

A: The above reaction is          X (g) + Y (g) → XY (g) Breaking of bonds requires absorption of…

Q: Which of the following substances has the largest molar entropy? Why? HCI (g) HCI (s) HCI (1) HBr…

A: Molar entropy is the randomness of a molecule.The molar entropy depends on the state of a molecule…