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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The change in Gibbs freee energy for vaporisation of a pure substance is

Zero
May be positive or negative
Negative
Positive

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Chemical Engineering Thermodynamics
Which of the following is not a common refrigerant?

Freon-12
Ammonia
Ethylene
Carbon dioxide

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Chemical Engineering Thermodynamics
At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

Infinity
One
Negative
Zero

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Chemical Engineering Thermodynamics
What is the ratio of adiabatic compressibility to isothermal compressibility?

1
> 1
< 1
>> 1

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Chemical Engineering Thermodynamics
What is the degree of freedom for two mis-cible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope?

2
1
3

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Chemical Engineering Thermodynamics
Partial molal quantities are important in the study of

Ideal gases
Non-ideal mixtures
Ideal solutions
A pure component

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