CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

Shift the equilibrium towards right

Give higher yield of NH₃

Both B and C

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a common refrigerant?

Ethylene

Carbon dioxide

Freon-12

Ammonia

TRUE ANSWER : ?
YOUR ANSWER : ?

Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of

Sublimation

Vaporisation

Transition

Fusion

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an intensive property?

None of these

Heat capacity

Surface tension

Chemical potential

TRUE ANSWER : ?
YOUR ANSWER : ?

Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is

(T₂ - T₁)/T₁

(T₁ - T₂)/T₁

(T₂ - T₁)/T₂

(T₁ - T₂)/T₂

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Greater than

The same

Different than

Less than

TRUE ANSWER : ?
YOUR ANSWER : ?

Linde gas liquefaction process employs cooling

None of these

By expansion in an engine

By throttling

At constant pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ decreases during adiabatic throttling of a perfect gas.

Pressure

Enthalpy

Entropy

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is

1

None of these

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

The principle applied in liquefaction of gases is

Joule-Thomson effect

Neither A nor B

Both A and B

Adiabatic expansion

TRUE ANSWER : ?
YOUR ANSWER : ?

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