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An ideal gas undergoes for different pro...

An ideal gas undergoes for 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

Text Solution

Verified by Experts

The correct Answer is:
C
For the curve 4 pressure is constant, so this is an isobaric process. ltBrgt
For the curve 1, volume is constant, so it is isochoric process. Between cuves 3 and 2, curve 2 is steeper, so it is adiabatic and 3 is isothermal.
Note We should be careful while deciding between isothermal and adiabatic curves because these curves look similar.
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