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  • 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.

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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