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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
What is the value of ln y (where y = activity co-efficient) for ideal gases?

Zero
Unity
Negative
Infinity

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Chemical Engineering Thermodynamics
If we increase the pressure on a substance (which is at its triple point), then the triple point

Remains unchanged
May increase or decrease ; depends on the substance
Increases
Decreases

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Chemical Engineering Thermodynamics
An isolated system can exchange __________ with its surroundings.

Neither matter nor energy
Energy
Matter
Both matter and energy

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Chemical Engineering Thermodynamics
If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the

Van Laar equation
Clayperon-Claussius equation
Maxwell's equation
Nernst Heat Theorem

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Chemical Engineering Thermodynamics
Enthalpy of a gas depends upon its

Volume
Mass
Temperature
Pressure

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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.

Increases
Decreases
Remains constant
Decreases exponentially

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