1.

The efficiency of an ideal gas with adiabatic exponent 'gamma' for the shown cyclic process would be

Answer»

<P>`((2ln2-1))/(GAMMA//(gamma-1))`
`((1-2ln2))/(gamma//(gamma-1))`
`((2ln2+1))/(gamma//(gamma-1))`
`((2ln2-1))/(gamma//(gamma+1))`

Solution :`W_(BC)=PDeltaV=nRDeltaT=-nRT_(0)`
`W_(CA)=+2nRT_(0)ln2`
`DeltaQ_(BC)=nC_(p)DeltaT=(nRgammaT_(0))/(gamma-1)`
HENCE, efficiency `((2ln2-1))/(gamma//(gamma-1))`


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