<Dl> <Dd> <Dl> <Dd> It is impossible to devise a cyclically operating device, the sole effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work . </Dd> </Dl> </Dd> </Dl> <Dd> <Dl> <Dd> It is impossible to devise a cyclically operating device, the sole effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work . </Dd> </Dl> </Dd> <Dl> <Dd> It is impossible to devise a cyclically operating device, the sole effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work . </Dd> </Dl> <Dd> It is impossible to devise a cyclically operating device, the sole effect of which is to absorb energy in the form of heat from a single thermal reservoir and to deliver an equivalent amount of work . </Dd>

State and explain the use of first law and second law of thermodynamics