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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of a Carnot engine depends on

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

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Engineering Thermodynamics
The value of cp/cv for air is

2.3
1
1.45
1.4

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Engineering Thermodynamics
A molecule consisting of one atom is known as

Di-atomic
Tri-atomic
Poly-atomic
Mono-atomic

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Engineering Thermodynamics
The statement that molecular weights of all gases occupy the same volume is known as

Gas law
Law of thermodynamics
Avogadro's hypothesis
Dalton's law

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Engineering Thermodynamics
In a free expansion process

Both (A) and (B) above
Work done is zero
Work done is zero but heat increases
Heat transfer is zero

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Engineering Thermodynamics
The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called

Specific heat at constant volume
Kilo Joule
None of these
Specific heat at constant pressure

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