17. For which one of the following reactions or processes is AH positive?I. water freezesII. H2(g) burns to form H2O(g)III. a process where q<0IV. popsicle meltingb. IIIс. IId. Iа. IV

Water freezes is exothermic therefore ΔH negative

Answered: 17. For which one of the following…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter16: Spontaneity Of Reaction

Section: Chapter Questions

Problem 83QAP

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On the basis of your experience, predict which of the following reactions are spontaneous. (a) CO2(s)CO2(g) at 25°C (b) NaCl(s)NaCl(l) at 25°C (c) 2NaCl(s)2Na(s)+Cl2(g) (d) CO2(g)C(s)+O2(g)
Given the following information at 25C, calculate G at 25C for the reaction 2A(g)+B(g)3C(g) Substance Hf(kJ/mol) S(J/molK) A(g) 191 244 B(g) 70.8 300 C(g) 197 164 a 956 kJ b 956 kJ c 346 kJ d 346 kJ e 1.03 103 kJ

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17. For which one of the following reactions or processes is AH positive? I. water freezes II. H2(g) burns to form H2O(g) III. a process where q<0 IV. popsicle melting b. III с. II d. I а. IV