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 covered by the PV curve with volume axis. Hence, according to graph shown $ W _{adiabatic}<W _{isothermal}<W _{isobaric} $



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