CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the __________ equation.

Clayperon

Gibbs-Duhem

Maxwell's

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The total change in the enthalpy of a system is independent of the

Number of intermediate chemical reactions involved

Pressure and temperature

None of these

State of combination and aggregation in the beginning and at the end of the reaction

TRUE ANSWER : ?
YOUR ANSWER : ?

A gas can be liquified by pressure alone only, when its temperature is __________ its critical temperature.

More than

Equal to or higher than

Less than

Less than or equal to

TRUE ANSWER : ?
YOUR ANSWER : ?

A gas shows deviation from ideal behaviour at

Low pressure and low temperature

Low pressure and high temperature

High temperature and high pressure

Low temperature and high pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

In the ammonia synthesis reaction, N₂ + 3H₂ ⇋ 2NH₃ + 22.4 kcal, the formation of NH₃ will be favoured by

Both low temperature and high pressure

High temperature

Low pressure

Low temperature only

TRUE ANSWER : ?
YOUR ANSWER : ?

Entropy change of mixing two liquid substances depends upon the

Quantity (i.e. number of moles)

Molar concentration

Both A and B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an intensive property?

Heat capacity

Chemical potential

Surface tension

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except

H₂

CO₂

O₂

N₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.

Above

Below

At

Either B or C

TRUE ANSWER : ?
YOUR ANSWER : ?

In the reaction, C + O₂ → CO₂ ; ΔH = - 94 kcal. What is the heat content (enthalpy)of O₂?

Zero

< - 94 kcal

-94 kcal

> -94 kcal

TRUE ANSWER : ?
YOUR ANSWER : ?

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