Physical Chemistry Third Edition

K Answers to Numerical Exercises and Odd-Numbered Numerical Problems 1317

4.29
a. ∆U 0
∆H 0
w−3040 J
q3040 J
∆S 23 .05JK−^1
∆Ssurr− 10 .196JK−^1
∆A−6873 J
∆G∆H−T∆S−6873 J
b. ∆U 0
∆H 0
w−6872 J
q6872 J
∆S 23 .05JK−^1
∆Ssurr− 23 .05JK−^1
∆A−6873 J
∆G−6873 J

4.31
b. ∆A2723 J for part a
∆A1718 J for part b

4.33
b. ∆Am−2269 J mol−^1
Am(ideal)−2271 J mol−^1
c.∆Am−2269 J mol−^1

4.35
b. ∆Am−2268 J mol−^1

4.37
a. ∆H◦− 802 .310 kJ mol−^1
∆S◦− 5 .081JK−^1 mol−^1
∆H◦−T∆S◦− 800 .795 kJ mol−^1
∆G◦− 800 .785 kJ mol−^1
b. ∆H◦(498.15 K)− 808 .27 kJ mol−^1
∆S◦(498.15 K)− 20 .378 J K mol−^1
∆G◦(498.15 K)− 818 .421 kJ mol−^1
c.wsurr 205 .0kJ

4.39
c. ∆G 8562 .1J

4.41
V 2  56. 72 ± 0 .11 cm^3 mol−^1

4.43
a. μ(100.00 bar)−μ(1.000 bar) 178 .4 J mol−^1

b. μ(100.00 bar)−μ(1.000 bar)11416 J mol−^1

4.45

a. homogeneous, degree 2

b. not homogeneous

c.not homogeneous

d.not homogeneous

e.not homogeneous

4.47

a. ∆Smix 9 .351JK−^1

∆Gmix−3273 J

b. μ 1 −μ◦ 1 −4034 J mol−^1

μ 2 −μ◦ 2 − 837 .2 J mol−^1

c.∆μ 2  0 .0333 J mol−^1

4.49

a. FALSE

b. FALSE

c.FALSE

f. FALSE

h.TRUE

4.51

a. CV 74 .854JK−^1 mol−^1

b. κS 4. 54 × 10 −^10 Pa−^1

c. vs1490 m s−^1

d. V 17. 99 × 10 −^6 m^3

e. ∆T 0 .546 K

f. ∆U 0 .409 J

4.53

b. Gm(T,P′)−G◦m(T) 1543 .4 J mol−^1

Sm(T,P′)−Sm◦(T)− 5 .986JK−^1 mol−^1

Hm(T,P′)−Hm◦(T)− 91 .6 J mol−^1

Am(T,P′)−A◦m(T)1574 J mol−^1

Um(T,P′)−Um◦(T)−61 J mol−^1

4.57

∆V− 13 .30 cm^3

∆S− 23 .15JK−^1

Chapter 5 Exercises

5.2

a. c 3

b. c 4

c.c 2