Thermodynamics Question 313
Question: A system changes from the state $ (P _{1},V _{1}) $ to $ (P _{2},V _{2}) $ as . What is the work done by the system?
Options:
A) $ 7.5\times 10^{5} $ joule
B) $ 7.5\times 10^{5} $ ergs
C) $ 12\times 10^{5} $ joule
D) $ 6\times 10^{5} $ joule
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Work done = Area of graph ABD;
From above we get, Area $ =1/2\times 4(1\times 10^{5}+5\times 10^{5}) $
$ =2\times 6\times 10^{5}=12\times 10^{5}\text{J} $ .
