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Engineering Thermodynamics

Engineering Thermodynamics
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

54 kJ
30 kJ
84 kJ
114 kJ

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Engineering Thermodynamics
A heat exchange process in which the product of pressure and volume remains constant is known as

Hyperbolic process
Isentropic process
Heat exchange process
Throttling process

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Engineering Thermodynamics
If in the equation pvn = C, the value of n = ∝, then the process is called

Isothermal process
Adiabatic process
Constant pressure process
Constant volume process

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Engineering Thermodynamics
The hyperbolic process is governed by

Gay-Lussac law
Charles' law
Avogadro's law
Boyle's law

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Engineering Thermodynamics
When gas is heated at constant pressure, the heat supplied is utilized in

Increasing the internal energy of gas and also for doing some external work
None of these
Increasing the internal energy of gas
Doing some external work

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Engineering Thermodynamics
The polytropic index (n) is given by

log (p1p2)/log (v1v2)
log [(p1v1)/(p2v2)]
log (p2/ p1)/log (v1/ v2)
log (v1/ v2)/ log (p1/p2)

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MORE MCQ ON Engineering Thermodynamics

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