Peoples Physics Book Version-2

19.4. Heat Engines http://www.ck12.org

13..

14..

15..

16..

17..

18..

19. 800,000 cal or 3360 kJ
    
    
    1. 150 cal (630 J)
    
    
    2. same as a!
    
    
    3. 
       
       
       
       0. 027 cal/g◦C( 0. 11 J/g◦C)
       
       
       
       
    
    
    4. 67,000 J
    
    
    5. 67.2 s
    
    
    6. 1.1 min
    
    
    
    


20. 11.0 g


21. 
    
    
    
    31. 8 ◦C
    
    
    
    


22. 
    
    
    
    0. 44 cal/g◦C
    
    
    1. 1600 cal (6720 J)
    
    
    2. 1800 cal (7560 J)
    
    
    
    


23. 59.3 cal/g


24. 517 m/s


25. 
    
    
    
    1. 15 × 1012 K
       26..
    
    
    
    


26. 40 N
    28.≈ 1028 molecules
    
    
    1. 21,000 Pa
    
    
    2. Decreases to 61,000 Pa
    
    
    3. 5.8 km
    
    
    4. No
    
    
    5. allowed by highly improbable state. More likely states are more disordered.
    
    
    6. 
       
       
       
       8. 34 × 1023
       
       
       
       
    
    
    7. 
       
       
       
       6. 64 × 10 −^27 kg
       
       
       
       
    
    
    8. 1600 m/s
    
    
    9. 744 kPa
    
    
    10. 
        
        
        
        4. 2 × 1020 or 0.0007 moles
        
        
        
        
    
    
    11. 0.00785 m^3
    
    
    12. 1.9 MW
    
    
    13. 0.56 MW
    
    
    14. 1.3 Mw
    
    
    15. 54%
    
    
    16. 240 kW
    
    
    17. 890 kW
    
    
    18. 590 kW
    
    
    19. 630 kg
    
    
    20. 98%
    
    
    21. 4.0%
    
    
    22. 12%