Engineering Thermodynamics
The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents

Either heat absorbed or heat rejected
None of the listed here
Heat absorbed
Heat rejected

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Engineering Thermodynamics
The specific heat at constant volume is

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

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