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Engineering Thermodynamics

Engineering Thermodynamics
The entropy may be expressed as a function of

All of these
Heat and work
Pressure and temperature
Temperature and volume

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Engineering Thermodynamics
When a gas is heated at constant volume

Both temperature and pressure will increase
Neither temperature nor pressure will increase
Its pressure will increase
Its temperature will increase

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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
The volumetric or molar specific heat at constant pressure is the product of

None of the listed here
Molecular mass of the gas and the gas constant
Atomic mass of the gas and the gas constant
Molecular mass of the gas and the specific heat at constant volume

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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 volume process
Constant pressure process

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Engineering Thermodynamics
The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

1 + (1/ rγ - 1)
1 + rγ - 1
1 - (1/ rγ - 1)
1 - rγ - 1

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MORE MCQ ON Engineering Thermodynamics

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