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Engineering Thermodynamics

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

Entropy
Volume
Mass
Enthalpy

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Engineering Thermodynamics
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to

E/2
2E/3
3E/4
E/3

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Engineering Thermodynamics
The entropy __________ in an irreversible cyclic process.

None of these
Remains constant
Increases
Decreases

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Engineering Thermodynamics
The polytropic index (n) is given by

log (p2/ p1)/log (v1/ v2)
log [(p1v1)/(p2v2)]
log (v1/ v2)/ log (p1/p2)
log (p1p2)/log (v1v2)

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Engineering Thermodynamics
The compression ratio is the ratio of

Swept volume to total volume
Total volume to clearance volume
Total volume to swept volume
Swept volume to clearance volume

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Engineering Thermodynamics
One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.

All of the listed here
9/7
11/4
4/7

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