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Engineering Thermodynamics

Engineering Thermodynamics
Characteristic gas constant of a gas is equal to

Cp + Cv
Cp /Cv
Cv /Cp
Cp - Cv

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcp (T2 - T1)
mcp (T2 + T1)
mcv (T2 - T1)
mR (T2 - T1)

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Engineering Thermodynamics
According to kinetic theory of gases, the absolute zero temperature is attained when

Pressure of the gas is zero
Specific heat of gas is zero
Kinetic energy of the molecules is zero
Volume of the gas is zero

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Engineering Thermodynamics
The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion)

(v1 + v2)/v2
v2/v1
(v1 + v2)/v1
v1/v2

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Engineering Thermodynamics
The unit of universal gas constant is

None of these

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

Otto cycle
Stirling cycle
None of the listed here
Carnot cycle

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MORE MCQ ON Engineering Thermodynamics

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