CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Activity co-efficient is a measure of the

Vapour pressure of liquid

None of these

Departure of gas phase from idea] gas law

Departure from ideal solution behaviour

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

None of these

Transition

Fusion

Vaporisation

TRUE ANSWER : ?
YOUR ANSWER : ?

Compressibility factor for almost all the gases are approximately same at the same

Reduced pressure and reduced temperature

Pressure and temperature

Critical pressure and critical temperature

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

During Joule-Thomson expansion of gases

Entropy remains constant

None of these

Temperature remains constant

Enthalpy remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

T lnK

RT lnK

-RT lnK

-R lnK

TRUE ANSWER : ?
YOUR ANSWER : ?

(∂H/∂T)p is the mathematical expression for

Entropy change

Gibbs free energy

CV

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

For an incompressible fluid, the __________ is a function of both pressure as well as temperature.

Entropy

All of these

Enthalpy

Internal energy

TRUE ANSWER : ?
YOUR ANSWER : ?

An irreversible process

Yields an amount of work less than that of a reversible process

Yields the maximum amount of work

Is the analog of linear frictionless motion in machines

Is an idealised visualisation of behaviour of a system

TRUE ANSWER : ?
YOUR ANSWER : ?

In jet refrigerators, the refrigerating fluid is practically always

Freon

Ammonia

Brine

Water

TRUE ANSWER : ?
YOUR ANSWER : ?

No work is done by the system, when a reaction occurs at constant

Volume

None of these

Temperature

Pressure

TRUE ANSWER : ?
YOUR ANSWER : ?