Which one of the following is correct when an ideal gas is expanded adaibaticallyand reversibly ?

Which one of the following is correct when an ideal gas is expanded ad

1.	Which one of the following is correct when an ideal gas is expanded adaibaticallyand reversibly ?
Answer» `q=0,W=nC_(v) dT, DeltaU= nC_(v)dT` `q=0,W=0,DeltaU = nC_(v)dT` `q=0,W= nC_(v)d,DeltaU =0` None of the above Solution :For ADIABATIC expansion, `q=0` As` DeltaU = q+W:. DeltaU = W` Further , `C_(v)= ((delU)/(delT))_(V) ` or `dU = C_(v)dT` For n moles , `W = n C_(v)dT` and `dU = nC_(v) dT`