Questions
An ideal gas is taken through the cycle A ➔ B ➔ C ➔ A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C ➔ A is:
a
- 5 J
b
-10 J
c
-15 J
d
-20 J
detailed solution
Correct option is A
Q=W+∆U⇒Wcycle=Q-∆U=5-0=5J But Tcycle=WAB+WBC+WCA So, 5=10(2-1)+0+WCA ⇒ WCA=-5 JTalk to our academic expert!
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In the P-V diagram shown in figure, ABC is a semicircle. Find the work done in the process ABC.
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