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Engineering Thermodynamics

Engineering Thermodynamics
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

Ru × T
2 Ru × T
1.5 Ru × T
3 Ru × T

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Engineering Thermodynamics
The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

Entropy
Enthalpy
External energy
Internal energy

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Engineering Thermodynamics
In an isothermal process, the internal energy of gas molecules

Decreases
May increase/decrease depending on the properties of gas
Remain constant
Increases

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Engineering Thermodynamics
When gas is heated at constant pressure, the heat supplied is utilized in

Doing some external work
Increasing the internal energy of gas and also for doing some external work
None of these
Increasing the internal energy of gas

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Engineering Thermodynamics
Which of the following process can be made reversible with the help of a regenerator?

Constant pressure process
Constant volume process
Constant pvn process
All of these

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Engineering Thermodynamics
When the gas is heated at constant pressure, the heat supplied

Increases the internal energy of the gas
Both (B) and (C)
Increases the temperature of the gas
Does some external work during expansion

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MORE MCQ ON Engineering Thermodynamics

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