Thermodynamics Question 185
Question: A sample of gas expands from volume $ V _{1} $ to$ V _{2} $ . The amount of work done by the gas is greatest when the expansion is
[CBSE PMT 1997; AIIMS 1998; JIPMER 2000]
Options:
A) Isothermal
B) Isobaric
C) Adiabatic
D) Equal in all cases
Show Answer
Answer:
Correct Answer: B
Solution:
In thermodynamic process, work done is equal to the area under the PV curve with respect to the volume axis. Hence, according to graph shown $ W _{adiabatic}<W _{isothermal}<W _{isobaric} $
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