Engineering Thermodynamics
A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is

Cost will be very high
May be possible with lot of sophistications
Not possible
Theoretically possible

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Engineering Thermodynamics
According to Clausius statement of second law of thermodynamics

Heat can
Heat can be transferred from low temperature to high temperature source if COP of process is more than unity
Heat can
Heat can be transferred for low temperature to high temperature source by using refrigeration cycle

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Engineering Thermodynamics
The specific heat at constant volume is

The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
The amount of heat required to raise the temperature of 1 kg of water through one degree
Any one of the above
The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure

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