An ideal gas undergoes four different processes from the same initial state (figure). Four process are adiabatic, isothermal, isobaric and isochloric. Out of 1, 2, 3, and 4 which one is idabatic.

Options

A. 4
B. 3
C. 2
D. 1

Answer

C

Explanation

For the curve 4 pressure is constant, so this is an isobaric process

For the curve I, volume is constant , so it is isochoric process, Between curves 3 and 2, curve 2 is steeper, so it is adiabatic and 3 is isothermal.