For #34: what is the relationship between entropy, temperature, and volume? And

Question

For #34: what is the relationship between entropy, temperature, and volume? And why?
For #35: how do I do this? 34) Under which of the following conditions would one mole of He have the highest entropy, S? A) 17°C and 15 L B) 127°C and 15 L c) 17°C and 25 L and as L S D)127°C and 25 L and as L-> S Answer: D Diff: 4 Page Ref: 17.8 urcd /sthe relatian hip bekueen TS,and ? 35) Calculate Grxn at 298 K under the conditions shown below for the following reaction. SO3(g) + H2O(g) H2SO4(1) G"--90.5 kJ & ractarts AG9--kT1n Apap: A" :-(.ooey3%K)1n (s.ue) (O.x)(.av) P(S03) = 0.20 atm, P(H2O) = 0.88 atm A) -90.5 kJ B)-91.9 kJ C) +91.9 kJ D) -89.1 kJ E) +89.1 kJ Answer: D Diff: 4 Page Ref: 17.8 .30 36) Calculate Grn at 298 K under the conditions shown below for the following reaction.

Explanation / Answer

a) Entropy is degrees of disorder and with an increase in temperature, the degrees of disorder increases.So higher the temperature higher the disorder and more is the entropy. Higher the volume higher the disorder and hence more is the entropy. So D is correct answer

b) deltaG= deltG0+ RTlnQ = -90.5*1000 +8.314* ln [1/[PSO3] [PH2O]

where PSO3 and PH2O are pressures of SO3 and H2O respectively

=-90.5*1000 +8.314*298*ln(1/0.2*0.88) =-86.19 Kj ( No answer is there)

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