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Engineering Thermodynamics

Engineering Thermodynamics
Molecular volume of any perfect gas at 600 × 103 N/m² and 27°C will be

41.7 m3/kg mol
400 m3/kg mol
0.15 m3/kg mol
4.17 m3/kg mol

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Engineering Thermodynamics
Second law of thermodynamics defines

Entropy
Internal energy
Heat
Work

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Engineering Thermodynamics
In a free expansion process

Work done is zero
Heat transfer is zero
Both (A) and (B) above
Work done is zero but heat increases

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Engineering Thermodynamics
A cycle consisting of two constant pressure and two isentropic processes is known as

None of the listed here
Carnot cycle
Otto cycle
Stirling cycle

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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

84 kJ
30 kJ
114 kJ
54 kJ

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Engineering Thermodynamics
For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be

Maximum
Zero
Minimum
Infinity

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MORE MCQ ON Engineering Thermodynamics

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