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Engineering Thermodynamics

Engineering Thermodynamics
The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)

pv = (RT)m
pv = mRT
pvm = C
pv = RTm

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Engineering Thermodynamics
Compressed air coming out from a punctured football

Remains at the same temperature
May become hotter or cooler depending upon the humidity of the surrounding air
Becomes hotter
Becomes cooler

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Engineering Thermodynamics
In S. I. units, the value of the universal gas constant is

83.14 J/kg mole-K
8.314 J/kg mole-K
8314 J/kg mole-K
831.4 J/kg mole-K

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Engineering Thermodynamics
If in the equation pvn = C, the value of n = ∝, then the process is called

Constant volume process
Adiabatic process
Constant pressure process
Isothermal process

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Engineering Thermodynamics
Carnot cycle has maximum efficiency for

Irreversible engine
Reversible engine
Petrol engine
Diesel engine

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Engineering Thermodynamics
Calorie is a measure of

Quantity of heat
Entropy
Specific heat
Thermal capacity

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MORE MCQ ON Engineering Thermodynamics

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