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Engineering Thermodynamics

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

Second
Zeroth
Third
First

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Engineering Thermodynamics
Which of the following processes is irreversible process?

Adiabatic
Isothermal
Throttling
All of these

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Engineering Thermodynamics
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as

Reversible cycle
None of these
Thermodynamic cycle
Irreversible cycle

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Engineering Thermodynamics
The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as

None of the listed here
Law of equipartition of energy
Law of conservation of energy
Law of degradation of energy

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Engineering Thermodynamics
The polytropic index (n) is given by

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

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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
84 kJ
30 kJ
114 kJ

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MORE MCQ ON Engineering Thermodynamics

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