Thermodynamics Question 177
Question: Work done by air when it expands from 50 litres to 150 litres at a constant pressure of 2 atmosphere is
Options:
A) $ 2\times 10^{4} $ joules
B) $ 2\times 100 $ joules
C) $ 2\times 10^{5}\times 100 $ joules
D) $ 2\times {{10}^{-5}}\times 100 $ joules
Show Answer
Answer:
Correct Answer: A
Solution:
$ W=P\times \Delta V=2\times 10^{5}(150-50)\times {{10}^{-3}}=2\times 10^{4}J $
