Question

A graph of pressure versus volume for an ideal gas for different processes is as shown. In the graph curve $OC$ represents

• A. isothermal process
• B. isobaric process
• C. adiabatic process
• D. isochoric process

Answer 1

Answer: (C)

(i) Curve $OA$ represents isobaric process (since pressure is constant) Since, the slope of adiabatic process is more steeper than the isothermal process.
(ii) Curve $OB$ represents isothermal process.
(iii) Curve $OC$ represents adiabatic process.
(iv) Curve $OD$ represents isochoric process (since volume is constant).