A sample of gas expands from $V_1$ to $V_2$. In which of the following, the work done will be greatest?

A sample of gas expands from $V_1$ to $V_2$. In which of the following, the work done will be greatest?
  1. Same in all processes
  2. Isobaric process
  3. Isothermal process
  4. Adiabatic process

Solution

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.

Asked in: JEE Main 2013 (25 Apr Online)

Practice more Thermodynamics questions on Aicharya