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Assertion : In an adiabatic process, change in internal energy of a gas is equal to work done on or by the gas in the process.
Reason : Temperature of gas remains constant in an adiabatic process.
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Reason : Temperature of gas remains constant in an adiabatic process.
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The correct answer is:
If assertion is true but reason is false.
Assertion is true but reason is false.
In an adiabatic process, no exchange of heat is permissible i.e., $d Q=0$.
As, $d Q=d U+d W=0 . \quad \therefore d U=-d W$.
In an adiabatic process, no exchange of heat is permissible i.e., $d Q=0$.
As, $d Q=d U+d W=0 . \quad \therefore d U=-d W$.
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