Assertion : During an adiabatic process,heat | vedclass

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(C) An adiabatic process is defined as a process where there is no exchange of heat between the system and the surroundings,i.e.,$q = 0$. Thus,the Ass

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If the Assertion is correct but Reason is incorrect.

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(C) An adiabatic process is defined as a process where there is no exchange of heat between the system and the surroundings,i.e.,$q = 0$. Thus,the Assertion is correct. During an adiabatic expansion,the system does work on the surroundings at the expense of its internal energy. Since $dU = dq + dw$ and $dq = 0$,$dU = dw$. For expansion,$dw < 0$,so $dU < 0$. Since internal energy is a function of temperature for an ideal gas,a decrease in internal energy leads to a decrease in temperature. Therefore,the Reason is incorrect.

Assertion : During an adiabatic process,heat energy is not exchanged between the system and its surroundings.
Reason : The temperature of a gas increases when it undergoes an adiabatic expansion.

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Assertion : During an adiabatic process,heat energy is not exchanged between the system and its surroundings. Reason : The temperature of a gas increases when it undergoes an adiabatic expansion.