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Engineering Thermodynamics

Engineering Thermodynamics
Work done is zero for the following process

Constant volume
All of the listed here
Throttling
Free expansion

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Engineering Thermodynamics
A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

+60 kJ
-140 kJ
-40 kJ
-80 kJ

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Engineering Thermodynamics
Temperature of a gas is produced due to

Kinetic energy of molecules
Repulsion of molecules
Surface tension of molecules
Its heating value

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Engineering Thermodynamics
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Compound
Molecule
Element
Atom

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Engineering Thermodynamics
Stirling and Ericsson cycles are

Irreversible cycles
Reversible cycles
Semi-reversible cycles
Quasi-static cycles

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Engineering Thermodynamics
The value of cp/cv for air is

1
1.4
2.3
1.45

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MORE MCQ ON Engineering Thermodynamics

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