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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Enthalpy of a gas depends upon its

Temperature
Pressure
Volume
Mass

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Chemical Engineering Thermodynamics
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature.

Critical
Inversion
Reduced
Boyle

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Chemical Engineering Thermodynamics
A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be __________ litres.

Data insufficient; can't be computed
448
224
22.4

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Chemical Engineering Thermodynamics
The internal energy of an ideal gas is a function of its __________ only.

Molecular size
Pressure
Temperature
Volume

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Chemical Engineering Thermodynamics
The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is

(∂S/∂V)T = (∂P/∂T)V
(∂S/∂P)T = -(∂V/∂T)P
(∂V/∂S)P = (∂T/∂P)S
(∂T/∂V)S = -(∂P/∂S)V

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Chemical Engineering Thermodynamics
Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is

300(33/5)
300(32/7)
300(33/7)
300(35/7)

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MORE MCQ ON Chemical Engineering Thermodynamics

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