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Engineering Thermodynamics

Engineering Thermodynamics
When a gas is heated, change takes place in

Pressure
Volume
Temperature
All of the listed here

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Engineering Thermodynamics
In S. I. units, the value of the universal gas constant is

83.14 J/kg mole-K
8314 J/kg mole-K
8.314 J/kg mole-K
831.4 J/kg mole-K

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Engineering Thermodynamics
The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as

Law of conservation of energy
Law of equipartition of energy
Law of degradation of energy
None of the listed here

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Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

rγ - 1
1 - (1/r) γ/γ - 1
1 - (1/r) γ - 1/ γ
1 - rγ - 1

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Engineering Thermodynamics
If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly

Internal energy
Entropy
Enthalpy
Temperature

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Engineering Thermodynamics
Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant

Volume
Pressure
Internal energy
Temperature

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MORE MCQ ON Engineering Thermodynamics

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