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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The minimum number of phases that can exist in a system is

1
0
3
2

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Chemical Engineering Thermodynamics
The unity of Planck's constant 'h' in the equation, E = hv is

J/s
J/kmol
Kmol/J
J.S

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Chemical Engineering Thermodynamics
Free energy changes for two reaction mechanism 'X' and 'Y are respectively - 15 and - 5 units. It implies that X is

Faster than Y
Slower than Y
Three times slower than Y
Three times faster than Y

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Chemical Engineering Thermodynamics
Which of the following identities can be most easily used to verify steam table data for superheated steam.

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

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Chemical Engineering Thermodynamics
Critical compressibility factor for all substances

Vary as square of the absolute temperature
Are more or less constant (vary from 0.2 to 0.3)
Vary as square of the absolute pressure
None of these

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Chemical Engineering Thermodynamics
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature)

3KT/m
√(2KT/m)
√(6KT/m)
√(3KT/m)

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