Question 1

Which of the following parameter was corrected by van der Waals?

Accepted Answer

Pressure

Answer

Mole fraction

Answer

Volume

Answer

Mole number

Question 2

A gas molecule plotting at the corner of any container, usually got ........... kinds of forces

Accepted Answer

3

Answer

4

Answer

5

Answer

2

Question 3

Which one is TRUE for compressibility factor?

Accepted Answer

Z = PV/RT

Answer

Z = PR/VT

Answer

Z = nRT

Answer

Z = RT/PV

Question 4

Which one is a TRUE statement for gas molecule?

Accepted Answer

At low pressures and high temperatures, the ideal-gas equation is obeyed.

Answer

At low temperature and high pressure, the ideal-gas equation is obeyed.

Answer

At high temperature and high pressure, the ideal-gas equation is obeyed.

Answer

At low temperature and low pressure, the ideal-gas equation is obeyed.

Question 5

When Z is greater for a real gas character?

Accepted Answer

The closer the gas is to the liquefaction point

Answer

The greater the gas is to the liquefaction point

Answer

The greater the gas is to the freezing point

Answer

The closer the gas is to the freezing point

Question 6

Which of the statement is TRUE for critical pressure of any real gas?

Accepted Answer

It is the lowest pressure to liquify any gas

Answer

At critical pressure, gas must be at it's lowest critical temperature

Answer

At critical pressure, gas must not be at it's lowest critical temperature

Answer

It is the highest pressure to liquify any gas

Question 7

At chemical equilibrium, concentration cannot change over time: is it TRUE?

Accepted Answer

Yes

Answer

No

Question 8

At chemical equilibrium, catalyst may

Accepted Answer

increase the rate of reaction

Answer

decrease rate of reaction

Answer

decrease concentration of product

Answer

increase concentration of reactant

Question 9

Which of the following is non variable with respect of conc. of reactant?

Accepted Answer

Equilibrium constant

Answer

Temperature

Answer

Volume

Answer

Pressure

Question 10

To liquify any gas it must be cooled ........... it's critical temperature

Accepted Answer

Below

Answer

Above

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