Thermodynamics Question 257
Question: Heat energy absorbed by a system in going through a cyclic process is
Options:
A) $ 10^{7}\pi J $
B) $ 10^{4}\pi J $
C) $ 10^{2}\pi J $
D) $ {{10}^{-3}}\pi J $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] As $ \Delta U=0 $ in a cyclic process,
$ AQ=AW=\text{area of circle}=\pi r^{2} $