An outline of the kinetic theory of matter - Jamb Chemistry Past Questions and Answers

Question 1:

• JAMB 2019

Which of the following statements is NOT correct?

A. The average kinetic energy of a gas is directly proportional to its temperature
B. At constant temperature, the volume of a gas increases as the pressure increases
C. The pressure of a gas is inversely proportional to its volume
D. The temperature of a gas is directly proportional to its volume
E. The collisions of molecules with each other are inelastic

Question 2:

• JAMB 1979

\(50cm^{3}\) of hydrogen are sparked with \(20cm^{3}\) of oxygen at \(100°C\) and \(1atm\) . The total volume of the residual gases in

A. 50 cm³
B. 10 cm³
C. 40 cm³
D. 30 cm³
E. 70 cm³

Question 3:

• JAMB 1979

Which of the following statements is true?

A. An increase in the temperature of a given mass of gas increases the number of gas molecules
B. An increase in the temperature of the gas does not affect the kinetic energy
C. An increase in the pressure of the gas is proportional to the increase in volume
D. A increase in the pressure of a gas is proportional to the decrease in volume at constant temperature
E. A decrease in the pressure of the gas decreases the number of gas molecules present

Question 4:

• JAMB 1981

28.8 cm³ of nitrogen at 15°C is cooled to O°C at constant pressure, the new volume of nitrogen is?

A. 17.4 cm³
B. 14.7 cm³
C. 27.3 cm³
D. 31.7 cm³

Question 5:

• JAMB 2004

According to charles' law, the volume of a gas becomes zero at

A. 0 ^oC
B. -100 ^oC
C. -273 ^oC
D. -373 ^oC