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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.

Different than
The same
Greater than
Less than

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Chemical Engineering Thermodynamics
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called __________ solutions.

Isotonic
Ideal
Real
None of these

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Chemical Engineering Thermodynamics
Critical compressibility factor for all substances

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

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Chemical Engineering Thermodynamics
Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.

Decreases exponentially
Remains constant
Decreases
Increases

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Chemical Engineering Thermodynamics
A gas mixture of three components is brought in contact with a dispersion of an organic phase in water. The degree of freedom of the system are

4
6
5
3

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Chemical Engineering Thermodynamics
4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

4 J
8 J
Zero
∞

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