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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Gibbs free energy at constant pressure and temperature under equilibrium conditions is

Minimum
Maximum
∞

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Chemical Engineering Thermodynamics
Which of the following behaves most closely like an ideal gas?

N₂
He
O₂
H₂

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Chemical Engineering Thermodynamics
Refrigerants commonly used for domestic refrigerators are

NH₃ or CO₂
Ethyl chloride or methyle chloride
Propane
Freon-12

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Chemical Engineering Thermodynamics
Work done in case of free expansion is

Negative
Indeterminate
None of these
Zero

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Chemical Engineering Thermodynamics
Sublimation temperature of dry ice (solid CO₂) is __________ °C.

5
-78
0
-273

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Chemical Engineering Thermodynamics
For an isothermal reversible compression of an ideal gas

DQ = dE
Only ΔE = 0
ΔE = ΔH = 0
Only ΔH =0

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