P21 038

background image

38.

(a) Using Eq. 21-12 and Eq. 21-14, we obtain

|W | =

|Q

L

|

K

C

= (1.0 J)

300 K

280 K

280 K

= 0.071 J .

(b) A similar calculation (being sure to use absolute temperature) leads to 0.50 J in this case.

(c) with T

L

= 100 K, we obtain

|W | = 2.0 J.

(d) Finally, with the low temperature reservoir at 50 K, an amount of work equal to

|W | = 5.0 J is

required.


Document Outline


Wyszukiwarka

Podobne podstrony:
P21 038
12 2005 035 038
p09 038
p10 038
P21 058
P21 067
P21 052
br 1 2011 s 038 042
P21 027
ep 12 035 038
P21 057
038 LS pr2
p12 038
p08 038
P16 038
P21 001
P20 038
02 2005 035 038
PaVeiTekstB 038

więcej podobnych podstron