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11. thermodynamics — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics11. thermodynamics1 Mark
MCQ
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
  • ✓
    Isobaric process
  • C
    Isothermal process
  • D
    Adiabatic process
✓

Answer

Correct option: 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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