Engineering Thermodynamics
First law of thermodynamics furnishes the relationship between

Heat, work and properties of the system
Various properties of the system
Heat and work
Various thermodynamic processes

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Engineering Thermodynamics
According to Clausius statement of second law of thermodynamics

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
Heat can

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