Engineering Thermodynamics
According to Clausius statement of second law of thermodynamics

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

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Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

None of these
It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body

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