Gas Laws - Jamb Physics Past Questions and Answers

Question 21:

• JAMB 1994

A Motor Tyre is inflated to pressure of 2.0 x 10⁵Nm^-2 when the temperature of air is 27^oC. What will be the pressure in it at 87^oC assuming that the volume of the Tyre does not change?

A. 2.6 x 10⁵Nm^-2
B. 2.4 x 10⁵Nm^-2
C. 2.2 x 10⁵Nm^-2
D. 1.3 x 10⁵Nm^-2

Question 22:

• JAMB 1998

A gas has a volume of 100cm³ at 27^oC. If it is heated to temperature T until a final volume of 120cm³ is attained, calculate T

A. 33^oC
B. 60^oC
C. 87^oC
D. 114^oC

Question 23:

• JAMB 1999

A gas at a volume of V₀ in a container at pressure P₀ is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant?

A. P₀/5
B. 4P₀/5
C. P₀
D. 5P₀

Question 24:

• JAMB 2001

The pressure of a given mass of a gas changes from 200Nm^-2 to 120Nm^-2 while the temperature drops from 127°C to -73°C. The ratio of the final volume to the initial volume is

A. 2 : 5
B. 5 : 4
C. 5 : 2
D. 4 : 5

Question 25:

• JAMB 2002

the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10^-3m³ is

A. 2.49 x 10⁵Nm^-2
B. 7.47 x 10⁵Nm^-2
C. 2.49 x 10⁶Nm^-2
D. 7.47 x 10⁶Nm^-2