CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

Sublimation temperature of dry ice (solid CO₂) is __________ °C.

5

0

-273

-78

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is affected by the temperature?

Free energy

Activity co-efficient

All of these

Fugacity

TRUE ANSWER : ?
YOUR ANSWER : ?

Domestic refrigerator usually works on the __________ refrigeration cycle.

Vapour-ejection

Absorption

Air

Carnot

TRUE ANSWER : ?
YOUR ANSWER : ?

Work done in an adiabatic process between two states depends on the

None of these

Rate of heat transmission

Initial state only

End states only

TRUE ANSWER : ?
YOUR ANSWER : ?

Refrigeration cycle

Both A and B

Involves transfer of heat from low temperature to high temperature

Violates second law of thermodynamics

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an intensive property?

Chemical potential

None of these

Surface tension

Heat capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

Joule-Thomson experiment is

Isenthalpic

Adiabatic

Both B & C

Isobaric

TRUE ANSWER : ?
YOUR ANSWER : ?

When a system is in equilibrium for all possible processes, the differential or finite change of entropy is

< 0

= 0

None of these

> 0

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 ⇋ PCl3 + Cl₂.Degree of dissociation of PCl5 will

Decrease on increasing the pressure of the system

None of these

Decrease on addition of Cl₂

Increase on addition of an inert gas at constant pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

The work done in isothermal compression compared to that in adiabatic compression will be

More or less depending upon the extent of work done

Less

Same

More

TRUE ANSWER : ?
YOUR ANSWER : ?