When an ideal gas undergoes an adiabatic change causing a temperature change \( \Delta T \) : \(...

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When an ideal gas undergoes an adiabatic change causing a temperature change \( \Delta T \) :
\( \mathrm{P} \)
(i) There is no heat gained or lost by the gas
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(ii) The work done on system is equal to loss in internal energy
(iii) The change in internal energy per mole of the gas is \( C_{v} \Delta T \), where \( C_{v} \) is the molar heat capacity at constant volume
(A) (i), (ii) \( \& \) (iii) are correct
(B) (i) \& (ii) are correct
(C) (i) \& (iii) are correct
(D) only (i) is correct
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