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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure

Volume
Mass
Enthalpy
Entropy

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Engineering Thermodynamics
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at

A temperature of 0°C
A negative pressure and 0°C temperature
A temperature of 273 °K
A temperature of - 273.16°C

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Engineering Thermodynamics
To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is

Multiplied by its density
Multiplied by its specific weight
Multiplied by its molecular weight
Divided by its molecular weight

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Engineering Thermodynamics
The atomic mass of nitrogen is __________ oxygen.

None of these
More than
Equal to
Less than

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Engineering Thermodynamics
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

84 kJ
30 kJ
54 kJ
114 kJ

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

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

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