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Engineering Thermodynamics

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 + v2)/v1

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Engineering Thermodynamics
The molecular mass expressed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of

22.4 liters
224 liters
0.224 liters
2.24 liters

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

500° to 700°C
300° to 500°C
700° to 900°C
900° to 1100°C

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Engineering Thermodynamics
Total heat of a substance is also known as

Enthalpy
Entropy
Thermal capacity
Internal energy

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Engineering Thermodynamics
The main cause for the irreversibility is

All of these
Mechanical and fluid friction
Unrestricted expansion
Heat transfer with a finite temperature difference

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

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

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