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Author Question: Choose the correct statements concerning entropy. I) Following the mixing of two gases, S is ... (Read 53 times)

maegan_martin

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on: Jul 8, 2021

Question 1

Calculate ΔrG° for the reaction Cu(s) + H2O(g) → CuO(s) + H2(g) at 500 K.

ΔfH° (kJ/ mol) S° (J/mol K)
Cu(s) 0 33.3
H2O(g) -241.8 188.7
CuO(s) -155.2 43.5
H2(g) 0 130.6  

◦ 231.8 kJ
◦ -135.4 kJ
◦ -58.6 kJ
◦ 110.6 kJ
◦ 86.74 kJ

Question 2

Choose the correct statements concerning entropy.
I)  Following the mixing of two gases, ΔS is positive.
II)  Entropy is a thermodynamic property related to the degree of disorder.
III)  If the temperature of a gas is decreased, ΔS is positive.
IV)  Molecules in the liquid state have higher entropy than the same molecules in the gaseous state.
◦ I and III
◦ I, II, III
◦ I and II
◦ I, II, IV
◦ II and III
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by maegan_martin on Jul 8, 2021

jordangronback

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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maegan_martin

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Reply 2 on: Jul 8, 2021
Great answer, keep it coming :)

ttt030911

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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