A sample of gas expands from $V_1$ to $V _2$. In which of the following, the work done will be greatest ?
A
Same in all processes
B
Isobaric process
C
Isothermal process
D
Adiabatic process
JEE MAIN 2013, Medium
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B
Isobaric process
b Work done $=$ Area bounded by $PV$ graph and volume axis
Among the three process, bounded area by $PV$ graph and volume axis is greatest for isobaric process, hence work done is greatest for isobaric process
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