Thermodynamics Question 350
Question: One gm mol of a diatomic gas $ (\gamma =1.4) $ is compressed adiabatically so that its temperature rises from $ 27^{o}C $ to $ 127^{o}C $ . The work done will be
Options:
A) 2077.5 joules
B) 207.5 joules
C) 207.5 ergs
D) None of the above
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ W=\frac{R}{\gamma -1}(T _{1}-T _{2}) $
$ =\frac{8.31\times {(273+27)-(273+127)}}{1.4-1}=-2077.5\ joules $
