CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm³ and that in vapour phase in 391.1 cm³.Fugacity of water (in kPa) at 9000 kPa will be

7058.3

6738.9

9000

6753.5

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YOUR ANSWER : ?

Joule-Thomson co-efficient depends on the

Temperature

Pressure

Neither A nor B

Both A & B

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The equation DU = Tds - PdV is applicable to infinitesimal changes occuring in

A closed system of constant composition

An open system with changes in composition

An open system of constant composition

A closed system with changes in composition

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Rotary lime kiln is an example of a/an __________ system.

Open

Non-thermodynamic

Closed

Isolated

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A solid is transformed into vapour without going to the liquid phase at

Below triple point

Boiling point

Triple point

Always

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A gas shows deviation from ideal behaviour at

Low pressure and low temperature

Low temperature and high pressure

Low pressure and high temperature

High temperature and high pressure

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When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

Arrehenius hypothesis

Le-Chatelier principle

Kopp's rule

Law of corresponding state

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After throttling, gas temperature

Remains same

May increase or decrease ; depends on the nature of the gas

Decreases

Increases

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The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________ point.

Boiling

Freezing

Boyle

Triple

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For a multicomponent system, the term chemical potential is equivalent to the

Molar free energy

Molar free energy change

Partial molar free energy

Molal concentration difference

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