Use a Table of Thermodynamic Data to calculate the standard molar entropy change for a) the conversion of nitrogen monoxide to nitrogen dioxide, and b) the synthesis of ammonia from its elements.

Q: Decide whether spontaneous or non spontaneous, justify your answer

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Q: Assuming that the values of ΔH° and ΔS° do not change appreciably with temperature, calculate the…

A: We have to predict the lowest temperature at which the reaction is spontaneous. For reaction to be…

Q: Directions: Calculate the standard entropy change for the following reaction using the table of…

A: The standard entropy change (∆S°) of a reaction can be calculated from standard entropy values of…

Q: How Gibbs free energy is determined by the volume of the substance ?

A: To find: relation between Gibbs free energy and volume?

Q: Which statement is generally true about the standard molar entropy? It is greater for a a solid than…

A: Entropy, is the measure of randomness of molecules . Since , gas molecules are more random so they…

Q: Which of the following gases has the highest entropy?

A: Entropy depends on the molar mass of the substance. Greater is the molar mass of the gas, the more…

Q: The rusting of iron is spontaneous and is accompanied by a decrease in the entropy of the system…

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Q: Discuss the Free Energy under Nonstandard Conditions?

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Q: Consider the decomposition of red mercury(ii) oxide under standard conditions.  Is the de…

A: The decomposition reaction can be written as 2 HgO (s, red) -------------> 2 Hg (l) + O2 (g)

Q: The law of thermodynamics states that every spontaneous process moves towards greater entropy.…

A: First law:  energy can't be created or destroyed. Second law :  The entropy increases for any…

Q: Can a perpetual motion machine exists given the laws of thermodynamics?

A: Perpetual motion machine: It is an idealistic concept which moves indefinitely without any energy…

Q: Calculate the standard state entropy of formation for H2O gas and of H2O liquid. Why is the entropy…

A: Solution: Standard entropy values at 25 deg. C for reference

Q: When is Gibbs free energy negative? If is it spontaneous or non-spotaneous?

A: Gibbs free energy change is a thermodynamic parameter, which is associated with the enthalpy and…

Q: Create a system that shows the third law of thermodynamics and how it relates to the concept of…

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Q: Why can endothermic reactions be spontaneous?

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Q: what is the name of the symbol of the single thermodynamic quantity (function) which determines…

A: what is the name of the symbol of the single thermodynamic quantity (function) which determines…

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

A: Entropy:  Degree of randomness (or) disorderness is said to be entropy It is represented by ∆S…

Q: molar entropy for t

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Q: the standard free energy of formation of solid sodium bromide is -347 KJ/mole. The standard Gibb's…

A: The standard free energy of formation of solid sodium bromide is -347 KJ/mole. We have to calculate…

Q: The Third Law of Thermodynamics states that the entropy of a perfect crystal at absolute zero (0 K)…

A: As per the third law of thermodynamics, the entropy of a perfect crystal at absolute zero (0K) is 0.…

Q: Calculate the change in entropy of 1 mol of nitrogen if it is heated from 300 K to 1000 K at a…

A: Moles of nitrogen = 1 mole T1 = 300 K T2 = 1000 K P = 1 atm

Q: The condition necessary for a reaction to be spontaneous at all temperatures is?

A: For a reaction is to be spontaneous the change in Gibbs free energy should be negative.  Now, ∆G =…

Q: What is the application of standard Gibbs free-energy to processes and reactions What is its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: Determine the change in entropy for 1.0 mole of an ideal gas originally confined to one- half of a…

A: At constant temperature, change in entropy is calculated using formula :

Q: What are the criteria for spontaneity in terms of entropy

A: The criteria for spontaneity in terms of entropy has to be determined.

Q: Under what circumstance can the entropy of a system decrease for a spontaneous process

A: The entropy tells the randomness present in the system due to its disorderness created in the system…

Q: Question attached

A: Given , mass of ice =100g  100 g H2O(s) at 0°C →∆S10  H2O (l) at 0 °C →∆S20 H2O (l) at 100°C →∆S30…

Q: Using the standard molar entropies, calculate the standard entropy change, AS°, for the following…

A: Hess's law  states that the amount of heat evolved or absorbed in a process is independent of the…

Q: Are the earth and sun in thermal equilibrium? Are there entropy changes associated with the…

A: 1. The earth and the Sun are not in the thermal equilibrium. As sun is much hotter or is having…

Q: in what kind of compound entropy effect is small. give examples

A: Entropy is defined as the degree of randomness odd disorder in a system. There are many factors…

Q: calculate the standard reaction entropy of the following chemical reaction:

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Q: Neither the change in enthalpy nor the change in entropy is, by itself, sufficient to determine…

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Q: b. How are the internal energies of chemical substances changed in a chemical reaction? State and…

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Q: Does the entropy of the surroundings increase for spontaneous processes?

A: The entropy is a measure of randomness of a system. In a spontaneous process, the entropy of the…

Q: For which of the processes does the entropy of the system increase?

A: The disorderness or randomness present in a molecule is termed as its entropy.

Q: Consider the reaction: CO(g) + Cl2(g) COCI,(g) Using standard thermodynamic data at 298K, calculate…

A: Gibbs free energy of the reaction is the highest amount of energy that is used to do a non-expansion…

Q: ard molar entropy,

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Q: What are the criteria for spontaneity(a) in terms of entropy and(b) in terms of free energy?

A: The Gibbs free energy is an important parameter to predict the feasibility of a process. The entropy…

Q: What is the entropy of a system that has only a single microstate?

A: Entropy is defined in the terms of randomness that a system possess or the disordered state. Change…

Q: How can a non-spontaneous process be made spontaneous?

A: Feasibility of a reaction depends on the change in Gibbs free energy. The value of change in Gibbs…

Q: Under what circumstance can the entropy of a system decrease for a spontaneous process?

A: For any spontaneous process process, the value of ΔG < 0 And since ΔG = ΔH - T ΔS

Q: Do you need to specify the temperature to calculate the entropy change?

A: The entropy change can be  calculated using the formula, Where,∆H standard enthalpy of formation…

Q: Calculate the change in entropy

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Q: Predict the sign of the entropy change of the system for each of the following reactions.

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Q: Which one of the following would have the largest molar entropy?

A: Molar entropy is the randomness or disorderedness of 1 mole of a substance. The molar entropy of…

Q: Explain which reaction is non-spontaneous and justify your answer in terms of change in enthalpy and…

A: Given : reaction