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Engineering Thermodynamics

Engineering Thermodynamics
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

1
∝
γ

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Engineering Thermodynamics
Carnot cycle efficiency depends upon

Working condition
Temperature range of operation
Properties of the medium/substance used
Condition of engine

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Engineering Thermodynamics
When the gas is cooled at constant pressure,

Its temperature increases but volume decreases
Both temperature and volume increases
Its volume increases but temperature decreases
Both temperature and volume decreases

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Engineering Thermodynamics
The heat and work are mutually convertible. This statement is called ___ law of thermodynamics.

Third
First
Zeroth
Second

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

300° to 500°C
900° to 1100°C
500° to 700°C
700° to 900°C

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Engineering Thermodynamics
The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

Charle's law
Boyle's law
Gay-Lussac law
Joule's law

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