(a)
Interpretation:
The qualitatively the sign of the entropy change expected for given reaction process has to be identified.
Concept Introduction:
Entropy is the measure of randomness in the system. The entropy change in a reaction is the difference in entropy of the products and reactants.
Where,
Standard entropy change in a reaction and entropy change in the system are same.
Using the value for the change in enthalpy in a system and the temperature, we can calculate
The summation of
(b)
Interpretation:
The qualitatively the sign of the entropy change expected for given reaction process has to be identified.
Concept Introduction:
Entropy is the measure of randomness in the system. The entropy change in a reaction is the difference in entropy of the products and reactants.
Where,
Standard entropy change in a reaction and entropy change in the system are same.
Using the value for the change in enthalpy in a system and the temperature, we can calculate
The summation of
(c)
Interpretation:
The qualitatively the sign of the entropy change expected for given reaction process has to be identified.
Concept Introduction:
Entropy is the measure of randomness in the system. The entropy change in a reaction is the difference in entropy of the products and reactants.
Where,
Standard entropy change in a reaction and entropy change in the system are same.
Using the value for the change in enthalpy in a system and the temperature, we can calculate
The summation of
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CHEMISTRY-ALEK 360 ACCES 1 SEMESTER ONL
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- Chemists and engineers who design nuclear power plants have to worry about high-temperature reactions because it is possible for water to decompose. (a) Under what conditions does this reaction occur spontaneously? 2H2O(g) 2H2(g) + O2(g) (b) Under conditions where the decomposition of water is spontaneous, do nuclear engineers have to worry about an oxygen/hydrogen explosion? Justify your answer.arrow_forwardWhat types of experiments can be carried out to determine whether a reaction is spontaneous? Does spontaneity have any relationship to the final equilibrium position of a reaction? Explain.arrow_forwardExplain why absolute entropies can be measured.arrow_forward
- Liquid water at 25C is introduced into an evacuated, insulated vessel. Identify the signs of the following thermodynamic functions for the process that occurs: H, S, Twater, Ssurr,, Suniv.arrow_forwardThe third law of thermodynamics states that the entropy of a perfect crystal at 0 K is zero. In Appendix 4, F(aq), OH(aq), and S2(aq) all have negative standard entropy values. How can S values be less than zero?arrow_forwardUse S values to calculate the standard entropy change, rS0, for each of the following processes and comment on the sign of the change. (a) KOH(s) KOH(aq) (b) Na(g) Na(s) (c) Br2() Br2(g) (d) HCl(g) HCl(aq)arrow_forward
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