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Engineering Thermodynamics

Engineering Thermodynamics
The ___ is obtained when carbonization of coal is carried out at 500° to 700° C.

Soft coal
Pulverized coal
Bituminous coal
Hard coal

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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

Pressure
Internal energy
Volume
Temperature

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Engineering Thermodynamics
The state of a substance whose evaporation from its liquid state is complete, is known as

Perfect gas
Air
Steam
Vapour

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Engineering Thermodynamics
One molecule of oxygen is __________ times heavier than the hydrogen atom.

12
32
14
16

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

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

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Engineering Thermodynamics
Change in enthalpy of a system is the heat supplied at

Constant entropy
Constant pressure
Constant volume
Constant temperature

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