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Engineering Thermodynamics

Engineering Thermodynamics
The value of gas constant (R) in S. I. units is

0.287 J/kgK
28.7 J/kgK
2.87 J/kgK
287 J/kgK

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Engineering Thermodynamics
The unit of universal gas constant is

None of these

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

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

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Engineering Thermodynamics
Which of the following variables controls the physical properties of a perfect gas?

Pressure
Temperature
All of these
Volume

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Engineering Thermodynamics
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.

Do not change
Change
None of these
Both (A) and (B)

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Engineering Thermodynamics
The atomic mass of oxygen is

16
18
121
14

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