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Engineering Thermodynamics

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

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

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Engineering Thermodynamics
A cycle consisting of ___ and two isothermal processes is known as Stirling cycle.

Two constant volume
Two constant pressure
Two isentropic
One constant pressure, one constant volume

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Engineering Thermodynamics
In a free expansion process

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

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Engineering Thermodynamics
When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.

Carbonization
Atomization
Combustion
None of these

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Engineering Thermodynamics
Which of the following items is not a path function?

Heat
Kinetic energy
Thermal conductivity
Work

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Engineering Thermodynamics
Entropy change depends on

Mass transfer
Change of temperature
Thermodynamic state
Heat transfer

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