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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

γ
∝
1

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Engineering Thermodynamics
The unit of energy is S. I. units is

Joule/meter (J/m)
Joule (J)
Joule meter (Jm)
Watt (W)

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Engineering Thermodynamics
If a system after undergoing a series of processes, returns to the initial state then

Sum of heat and work transfer will be zero
Its entropy will change due to irreversibility
Process is executed in closed system cycle
Process is thermodynamically in equilibrium

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Engineering Thermodynamics
In an extensive property of a thermodynamic system

None of the listed here
Extensive heat is transferred
Extensive energy is utilized
Extensive work is done

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

Adiabatic process
Isothermal process
Polytropic process
Hyperbolic process

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Engineering Thermodynamics
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

-ve
+ve
Zero
Anywhere between zero and infinity

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