AIIMS 2018 Physics Adiabatic Processes MCQ Question
Assertion : In adiabatic process change in internal energy is equal to work done on gas.
Reason : In adiabatic process no heat exchange with surrounding
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
In an adiabatic process, no heat is exchanged with the surroundings (Q = 0), which means that the work done (W) by the gas is equal to the negative change in its internal energy (ΔU), as described by the first law of thermodynamics: ΔU = Q - W. Therefore, during adiabatic expansion, the work done by the gas results in a decrease in its internal energy, confirming that W = -ΔU. Other options are not applicable as they do not provide relevant information or correct interpretations of the adiabatic process.
Found an issue with this question?