Physical Chemistry Third Edition

1330 K Answers to Numerical Exercises and Odd-Numbered Numerical Problems

11.25
first order,kf  1. 23 × 10 −^4 s−^1
V(0)−V(∞) 14 .01 mL

11.27
a. pseudo first order,kf 4. 24 × 10 −^4 s−^1
b. P 22. 62 − 11. 975  10. 64

11.29
[A] 0 .110 mol L−^1
[B] 0 .890 mol L−^1

11.41
a. m(OH−)M(NH+ 4 ) 4. 10 × 10 −^4 mol kg−^1
b. kf 7. 0 × 106 s−^1
c.τ 6 × 10 −^9 s

Chapter 12 Exercises

12.3
f 1. 11 × 10 −^11

12.5
Forz 2 z 3 2, f 0. 174
Forz 2 z 3 1, f 0. 450
Forz 2 z 3 0, f 1
Forz 2 z 3 −1, f 1. 88
Forz 2 z 3 −2, f 3. 03

12.6
a. Ea 51 .2kJmol−^1
b. Ea 78 .0kJmol−^1

12.7
φ 7. 0 × 10 −^3

12.19
νmin 4. 86 × 1014 s−^1
λmax 6. 17 × 10 −^7 m617 nm

Chapter 12 Problems

12.1
k 1. 2 × 10 −^10 L mol−^1 s−^1

12.3
d 23  5. 6 × 10 −^10 m560 pm

12.5
a. k 1. 1 × 106 m^3 mol−^1 s−^1
 1. 1 × 109 L mol−^1 s−^1

b. fraction 1. 3 × 10 −^17

12.7

a. Ea 200 .6kJmol−^1

A 4. 008 × 1014 s−^1

b. k 1. 371 × 10 −^3 s−^1

c.t1174 s

12.9

Ea170,000 J mol−^1 170 kJ mol−^1

A 5. 98 × 109 L mol−^1 s−^1

12.11

a. Ea194 kJ mol−^1

A 2. 38 × 1012 L mol−^1 s−^1

b. k(773 K) 0 .185 L mol−^1 s−^1

c.t 1 / 2 686 s

12.13

a. Ea 9. 22 × 104 J mol−^1  92 .2kJmol−^1

A 4. 55 × 1012 s−^1

b. k(288.15 K) 8. 77 × 10 −^5 s−^1

c.t 1 / 2  7. 90 × 103 s

12.15

a. Ea213 kJ mol−^1

A 3. 46 × 109 L−^1 mol s−^1

b. φ 0. 0077

12.39

a. Ea230 kJ mol−^1

A 3. 81 × 1014 s−^1

b. k(823 K) 0 .940 s−^1

c.Att 10 .00 s, P(C 2 H 5 Br) 8. 3 × 10 −^3 atm

At 100.0s,P(C 2 H 5 Br) 1. 5 × 10 −^41 atm

12.41

b. Ea− 6 .0kJmol−^1

A 2. 3 × 1033 cm^6 s−^1

12.43

a. TRUE

b. FALSE

c.FALSE

d. TRUE

e.TRUE

f. TRUE

g. FALSE

h. FALSE

i.FALSE

j. TRUE