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

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Engineering Thermodynamics
In an isothermal process, the internal energy

First increases and then decreases
Decreases
Remain constant
Increases

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Engineering Thermodynamics
Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

cv/ cp =R
Both (B) and (C)
cv = R/ γ-1
cp - cv = R

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Engineering Thermodynamics
Specific heat of air at constant pressure is equal to

0.17
0.24
1
0.21

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Engineering Thermodynamics
The efficiency of Carnot cycle is maximum for

Steam engine
Gas engine
Reversible engine
Petrol engine

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Engineering Thermodynamics
Which law states that the specific heat of a gas remains constant at all temperatures and pressures?

Joule's Law
Charles' Law
Regnault's Law
Boyle's Law

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MORE MCQ ON Engineering Thermodynamics

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