The enthalpy change for a reaction can be calculated using the formation enthalpies of the products and reactants. It would be possible to use formation entropy values to calculate the entropy change for a reaction in a similar manner; however, this is not done in practice. Describe the procedure in calculating entropy change of reactions that is used instead.

Q: The graph represents the energy change of a chemical reaction. Which must be true about the entropy…

A: Given, the energy profile diagram: We have to find the correct statement about the entropy of the…

Q: a) H2(g)→ 2H(g) b) N2 (g. 1 atm) → N, (g, 8 atm) C) 2SO3(g) → 2SO,(g) + O2(g) d) C (Diamond) → C…

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Q: Is the change in the enthalpy of reaction or the change in entropy of reaction more sensitive to…

A: Enthalpy of a reaction is the difference between total energy of reactant and total energy of the…

Q: Define entropy and state the second law of thermodynamics?

A: Entropy is a thermodynamic property which shows the inaccessibility of a system's thermal energy. It…

Q: Consider the following reaction: 2 NO(g)  N2(g) + O2(g) The enthalpy change at 298 K for this…

A: The given equilibrium reaction is  2 NO(g) ---------->  N2(g) + O2(g) The enthalpy change at 298…

Q: Determine whether each of the following statements about the thermodynamic functions are True or…

A: The spontaneity of a chemical reaction not only depends on the enthalpy change but also depends on…

Q: Determine whether each of the following statements about the thermodynamic functions are True or…

A: Equation for determining free energy is, ∆G = ∆H - T∆S.Hence, the statement “Entropy and temperature…

Q: Determine whether each of the following statements about the thermodynamic functions are True or…

A: The relationship between Gibbs free energy and  Entropy and enthalpy is given by  G = H - TS where G…

Q: Under what conditions will enthalpy tend to dominate the equilibrium state of a chemical system?…

A: The dominance of enthalpy or entropy in determining the equilibrium state of a chemical system…

Q: In freezing a mole of liquid water at the freezing point; the enthalpy of fusion is 6.0lkJ/mol…

A: The enthalpy of fusion is 6.01 KJ/mol To determine : entropy of system , surrounding and universe

Q: The enthalpy change for a certain reaction is -209.4 kJ and the entropy change is 585.7 J/K.  What…

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Q: 6) Consider H;0 going from the gas phase to liquid phase to solid phase. Describe the changes in…

A: In the vapor state, the gas phase of water, water molecules have the highest kinetic energy and this…

Q: Define gibbs free energy in a reaction.

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: In chemical reactions, heat is either released or absorbed and entropy either increases or…

A: Answer: Relation between Gibbs free energy change, enthalpy change and entropy change is: ∆G=∆H-T∆S…

Q: When heat is added to the surroundings, the entropy of the surroundings increases. How does Ssurr…

A: We know that Entropy is defined the randomness of system. Entropy is represent by the symbol "S"

Q: What conditions are necessary in order for a reaction with a negative change in entropy (Delta S…

A: delta G =delta H - T delta S  For  a reaction ,  1) if a reaction is exothermic (delta H is…

Q: Exothermic Endothermic Honer than suroundings Heat Heat Cooler than sunoundinge Heal Neal Heal Heat…

A: We know that,  Entropy measure randomness. It means that, more randomness means more entropy as like…

Q: The graph represents the energy change of a chemical reaction. Which must be true about the entropy…

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

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Q: It is the study of the heat or energy involved in physical and chemical changes. Thermodynamics…

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Q: Entropy is the randomness of a system. At the molecular level, entropy can be described in terms of…

A: Since you have asked multiple questions, we will solve the first question for you as per our…

Q: Give an example of a spontaneous process in which a system becomes less ordered and energy becomes…

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Q: Which statement DOES NOT describe the entropy of a system in its molecular state?  Entropy changes…

A: The degree of randomness in a system is measured in terms of entropy. The higher the entropy greater…

Q: Spontaneous When entropy is positive and enthalpy is negative, a process is spontaneous. This means…

A: Answer: Relation between Gibbs free energy change, enthalpy change and entropy change is: ∆G=∆H-T∆S…

Q: reaction is most likely to be spontaneous when during the course of a reaction:       the energy…

A: For the reaction to be spontaneous, ∆G should be negative. ∆G = ∆H - T∆S

Q: Which statement is INCORRECT with respect to thermodynamics? A) The sign of ΔG for a reaction is…

A: A) Gibbs free energy change, ∆G is related with enthalpy change, ∆H, temperature and Entropy change,…

Q: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous? Explain

A: The entropy and enthalpy of a reaction are both negative. Is the reaction spontaneous has to be…

Q: Consider entropy and its role in determining if chemical and physical processes are spontaneous.…

A: The entropy change shows the "increment or decrement" in randomness. During melting, the phase…

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…