Question

# An ideal gas undergoes four different processes from the same initial state (Figure Four processes are adiabatic, isothermal, isobaric and isochoric. Out of $$1, 2, 3$$ and $$4$$, which one is adiabatic?

A
4
B
3
C
2
D
1

Solution

## The correct option is B $$2$$When a thermodynamic system undergoes a change in such a way that no exchange of heat takes place between it and the surroundings, the process is known as adiabatic process.Graph $$4$$ is isobaric process, $$1$$ is isochoric. Of $$3$$ and $$2, 3$$ has the smaller slope (magnitude) hence is isothermal. Remaining process is adiabatic. So graph $$2$$ is adiabatic. Correct answer is option (C).Physics

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