Page 259 - Schaum's Outline of Theory and Problems of Applied Physics

244 KINETIC THEORY OF MATTER [CHAP. 20

20.4. (a) 46 percent (b) 7 C
◦
20.5. 56 percent

20.6. 7.32 × 10 −26 kg; 2.99 × 10 −25 kg
23
20.7. 9.48 × 10 atoms
20.8. 273 C
◦
20.9. 819 C
◦
20.10. (a) 4000 mi/h (b) 707 mi/h

20.11. (a) 1.6 × 10 −20 J (b) 311 m/s

20.12. 1940 mol
26
20.13. (a) 7.85 kg (b) 1.93 ×10 atoms
20.14. (a) 184 L (b) 84.4 L

20.15. (a) 6.98 L (c) 4.51 L
(b) 13.96 L

20.16. (a) 10.2 L (b) 2.36 L

20.17. 3.04 g

20.18. (a) 26.5 g (b) 2.21 g/L = 2.21 kg/m 3
20.19. 4.5 kg

20.20. 2.86 g/L = 2.86 kg/m 3

20.21. 0.571 kg/m 3

20.22. 65 u