Engineering Thermodynamics
The volumetric or molar specific heat at constant pressure is the product of

None of the listed here
Atomic mass of the gas and the gas constant
Molecular mass of the gas and the gas constant
Molecular mass of the gas and the specific heat at constant volume

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Engineering Thermodynamics
The work ratio of a gas turbine plant is given by

(Net work output)/(Heat supplied)
(Isentropic increase in temperature)/(Actual increase in temperature)
(Actual temperature drop)/(Isentropic temperature drop)
(Net work output)/(Work-done by the turbine)

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