Author Question: Choose the correct statements concerning entropy. I) Following the mixing of two gases, S is ... (Read 61 times)

maegan_martin · **on:** Jul 8, 2021

Question 1

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

Δ_fH° (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

jordangronback · **Reply #1 on:** Jul 8, 2021

A FREE account is required to view all solutions!

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.

Answer Preview

Only 35% of students answer this correctly