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Engineering Thermodynamics

Engineering Thermodynamics
Total heat of a substance is also known as

Enthalpy
Thermal capacity
Entropy
Internal energy

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Engineering Thermodynamics
Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure

Mass
Volume
Enthalpy
Entropy

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

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

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Engineering Thermodynamics
The general law for the expansion or compression of gases, is

pv = C
pv = m R T
pvγ = C
pvn = C

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Engineering Thermodynamics
For which of the following substances, the internal energy and enthalpy are the functions of temperature only

Water
Saturated steam
Any gas
Perfect gas

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Engineering Thermodynamics
The efficiency of a Carnot engine depends on

Design of engine
Size of engine
Working substance
Temperatures of source and sink

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