Kinetic theory of matter and Gas Laws - Jamb Chemistry Past Questions and Answers

Question 16:

• JAMB 1982

The pressure on 100 cm³ of oxygen gas at 35°C is 750mm of Hg.What would be the volume of the gas if the pressure is increased to 1000mm of Hg without changing the temperature?

A. 133.3 cm³
B. 85 cm³
C. 75 cm³
D. 65 cm³
E. 58.3 cm³

Question 17:

• JAMB 1982

When copper powder is heated with concentrated sulphuric acid, the gas produced is?

A. Hydrogen sulphide
B. Sulphur dioxide
C. Sulphur trioxide
D. Hydrogen pentasulphide
E. Sulphur pentoxide

Question 18:

• JAMB 1983

Which of the following relationships between the pressure P, the volume V and the temperature T, represents an ideal gas behaviour?

A. P \(\alpha\) VT
B. P \(\alpha\) T/V
C. PT \(\alpha\) V
D. PV \(\alpha\) I/T
E. P \(\alpha\) V/T

Question 19:

• JAMB 1983

Which of the following pair of gases will NOT react further with oxygen at a temperature between 30^oC AND 400^oC

A. SO₂ and NH₃
B. CO₂ and H₂
C. NO₂ and SO₃
D. SO₃ and NO
E. CO and H₂

Question 20:

• JAMB 1983

Increasing the pressure of a gas

A. Lowers the average kinetic energy of the molecules
B. Decreases the density of the gas
C. Decreases the temperature of the gas
D. Increases the density of the gas
E. Increases the volume of the gas