CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

The expression, ΔG = nRT .In P₂/P₁ , gives the free energy change

With pressure changes at constant temperature

During cooling of an ideal gas

During heating of an ideal gas

Under reversible isothermal volume change

TRUE ANSWER : ?
YOUR ANSWER : ?

Boiling of liquid is accompanied with increase in the

Specific Gibbs free energy

All of these

Vapor pressure

Specific entropy

TRUE ANSWER : ?
YOUR ANSWER : ?

The third law of thermodynamics states that the

Heat transfer from low temperature to high temperature source is not possible without external work

Gases having same reduced properties behave similarly

None of these

Heat capacity of a crystalline solid is zero at absolute zero temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

During adiabatic expansion of gas

None of these

Pressure is increased

Temperature remains constant

Pressure remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of degrees of freedom for a mixture of ice and water (liquid) are

1

3

0

2

TRUE ANSWER : ?
YOUR ANSWER : ?

Ideal gas law is applicable at

Low T, high P

High T, high P

High T, low P

Low T, low P

TRUE ANSWER : ?
YOUR ANSWER : ?

A gas mixture of three components is brought in contact with a dispersion of an organic phase in water. The degree of freedom of the system are

4

3

5

6

TRUE ANSWER : ?
YOUR ANSWER : ?

In a turbine, the fluid expands almost

None of these

Isobarically

Adiabatically

Isothermally

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is not a refrigerant?

CCl₂F₂

NH₃

C₂H₄Cl₂

SO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the ratio of adiabatic compressibility to isothermal compressibility?

>> 1

> 1

< 1

1

TRUE ANSWER : ?
YOUR ANSWER : ?