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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following processes is irreversible process?

Adiabatic
All of these
Isothermal
Throttling

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Engineering Thermodynamics
When the expansion or compression takes place according to the law pvn = C, the process is known as

Polytropic process
Hyperbolic process
Adiabatic process
Isothermal process

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Engineering Thermodynamics
The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is

4.086
1.086
1.086
0.086

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Engineering Thermodynamics
The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as

Atkinson cycle
Dual combustion cycle
Diesel cycle
Rankine cycle

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Engineering Thermodynamics
The entropy may be expressed as a function of

All of these
Heat and work
Temperature and volume
Pressure and temperature

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Engineering Thermodynamics
General gas equation is

PV = C
PV=mRT
PV=KiRT
PV=nRT

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