CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

The number of degree of freedom for an azeotropic mixture of ethanol and water in vapour-liquid equilibrium, is

0

2

1

3

TRUE ANSWER : ?
YOUR ANSWER : ?

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is

+ve

-ve

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.

Bucket

Throttling

A combination of separating & throttling

Separating

TRUE ANSWER : ?
YOUR ANSWER : ?

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

He

H₂

N₂

O₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Linde gas liquefaction process employs cooling

By expansion in an engine

None of these

By throttling

At constant pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

A nozzle is a device, which

Increases kinetic energy and decreases pressure

Reduces kinetic energy and increases pressure

Increases both kinetic energy and pressure

Reduces both kinetic energy and pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

92

72

142

192

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Unity

Negative

Infinity

Zero

TRUE ANSWER : ?
YOUR ANSWER : ?

An isolated system can exchange __________ with its surroundings.

Matter

Energy

Neither matter nor energy

Both matter and energy

TRUE ANSWER : ?
YOUR ANSWER : ?

Isentropic process means a constant __________ process.

Enthalpy

None of these

Pressure

Entropy

TRUE ANSWER : ?
YOUR ANSWER : ?

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