Engineering Thermodynamics
Temperature of a gas is produced due to

Surface tension of molecules
Repulsion of molecules
Kinetic energy of molecules
Its heating value

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Engineering Thermodynamics
The door of a running refrigerator inside a room was left open. Which of the following statements is correct?

The room will be cooled to the temperature inside the refrigerator
The temperature of the air in room will remain unaffected
The room will be gradually warmed up
The room will be cooled very slightly

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Engineering Thermodynamics
The universal gas constant (or molar constant) of a gas is the product of

Molecular mass of the gas and the specific heat at constant pressure
Atomic mass of the gas and the gas constant
Molecular mass of the gas and the gas constant
Molecular mass of the gas and the specific heat at constant volume

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