**Educational Assessment**1) **Which of the following statements is TRUE?** A) ΔS_universe is always greater than zero for a nonspontaneous process. B) Exothermic processes decrease the entropy of the surroundings. C) Entropy is not temperature dependent. D) Entropy is an extensive property. E) None of the above are true.2) **For a given reaction, ΔH = +35.5 kJ/mol and ΔS = +83.6 J/K·mol. The reaction is spontaneous ________. Assume that ΔH and ΔS do not vary with temperature.** A) at all temperatures B) at T < 425 K C) at T < 298 K D) at T > 425 K E) at T > 298 K3) **What element is being reduced in the following redox reaction?** \[ \text{H}_2\text{O}_2(l) + \text{ClO}_2(aq) \rightarrow \text{ClO}_2^-(aq) + \text{O}_2(g) \] A) C B) N C) O D) H E) Cl

The condition of spontaneity of a reaction is that overall change in Gibbs free energy should be…

1) Which of the following statements is TRUE? A) ASuniverse is always greater than zero for a nonspontaneous process. B) Exothermic processes decrease the entropy of the surroundings. C) Entropy is not temperature dependent. D) Entropy is an extensive property. E) None of the above are true. 2) For a given reaction, AH = +35.5 kJ/mol and AS = +83.6 J/Kmol. The reaction is spontaneous Assume that AH and AS do not vary with temperature. A) at all temperatures B) at T < 425 K C) at T < 298 K D) at T > 425 K E) at T > 298 K 3) What element is being reduced in the following redox reaction? H₂O2(1) + ClO2(aq) → ClO₂¯(aq) + O2(g) C) O A) C B) N D) H E) Cl

1) Which of the following statements is TRUE? A) ASuniverse is always greater than zero for a nonspontaneous process. B) Exothermic processes decrease the entropy of the surroundings. C) Entropy is not temperature dependent. D) Entropy is an extensive property. E) None of the above are true. 2) For a given reaction, AH = +35.5 kJ/mol and AS = +83.6 J/Kmol. The reaction is spontaneous Assume that AH and AS do not vary with temperature. A) at all temperatures B) at T < 425 K C) at T < 298 K D) at T > 425 K E) at T > 298 K 3) What element is being reduced in the following redox reaction? H₂O2(1) + ClO2(aq) → ClO₂¯(aq) + O2(g) C) O A) C B) N D) H E) Cl

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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