In an adiabatic process, no transfer of heat takes place between system and surroundings.Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following.
(i) q = 0, \Delta T \neq 0, w = 0
(ii) q \neq 0, \Delta T = 0, w = 0
(iii) q = 0, \Delta T = 0, w = 0
(iv) q = 0, \Delta T < 0, w \neq 0

Answers (1)

The answer is option (iii) q = 0, \Delta T = 0, w = 0

Explanation: w =0 in the situation of free expansion since the volume is also constant. Als0, q=0 considering the process is adiabatic. The first law of thermodynamics state that \Delta U=q+w=0 which is a constant.

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