Question

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 :
A. `q = 0, Delta T != 0, w=0`
B. `q 1= 0, Delta T = 0, w=0`
C. `q = 0, Delta T = 0, w=0`
D. `q = 0, Delta T lt 0, w != 0`

Answer 1

Correct Answer - C
For free expansion w=0
For adiabatic process q=0
From first law of thermodynamics, ltbr. `Delta U = q+w=0`
Since there is no change of internal energy, hence temperature will also remain constant, i.e., `Delta T=0`