CHEMICAL ENGINEERING THERMODYNAMICS QUIZ

The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

Specific heat

Volume

Temperature

Pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the value of Joule-Thomson co-efficient for an ideal gas?

-ve

+ve

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is

Decreasing

Data sufficient, can't be predicted

Increasing

Not changed

TRUE ANSWER : ?
YOUR ANSWER : ?

Internal energy of an ideal gas

None of these

Increases with increase in pressure

Is independent of temperature

Decreases with increase in temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following equations is used for the prediction of activity co-efficient from experiments?

Wilson's equation

Van Laar equation

All of these

Margules equation

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an extensive property of a system?

Molal heat capacity

Heat capacity

Pressure

Concentration

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following identities can be most easily used to verify steam table data for superheated steam.

(∂P/∂T)V = (∂S/∂V)T

(∂T/∂V)S = (∂p/∂S)V

(∂V/∂T)P = -(∂S/∂P)T

(∂T/∂P)S = (∂V/∂S)P

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick out the undesirable property for a good refrigerant.

High viscosity

High thermal conductivity

Large latent heat of vaporisation

Low freezing point

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Both B and C

Neither A nor B

Shift the equilibrium towards right

Give higher yield of NH₃

TRUE ANSWER : ?
YOUR ANSWER : ?

At absolute zero temperature, all substances have the same

Crystalline structure

None of these

Entropy

Heat capacity

TRUE ANSWER : ?
YOUR ANSWER : ?

↑