Engineering Thermodynamics
According to Clausius statement of second law of thermodynamics

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

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Engineering Thermodynamics
According to Avogadro’s law

All of these
The sum of partial pressure of the mixture of two gases is sum of the two
The product of the gas constant and the molecular mass of an ideal gas is constant
Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules

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