In an adibatic process, no transfer of heat takes place between system and surroundings. Choose the correct option for free expansion of an ideal gas under adiabatic conditions from the following :

Options

A. `q = 0, DeltaT ne 0, w = 0`
B. `q ne 0 , Delta T = 0 , w = 0`
C. `q = 0, DeltaT = 0 , w = 0`
D. `q = 0, DeltaT lt 0, w ne 0`

Answer

C

Explanation

For free expansion,
w = 0
For adiabatic, `q = 0`
`DeltaU = q + w =0`
Since internal energy remains constant.