Gas Laws - Jamb Physics Past Questions and Answers

Question 11:

• JAMB 1985

A quantity of gas occupies a certain volume when the temperature is -73^oC and the pressure is 1.5 atmospheres. If the pressure is increased to 4.5 atmospheres and the volume is halved at the same time, what will be the new temperature of the gas?

A. 573^oC
B. 327^oC
C. 300^oC
D. 110^oC
E. 27^oC

Question 12:

• JAMB 1985

In a gas experiment, the pressure of the gas is plotted against the reciprocal of the volume of the gas at a constant temperature. the unit of the slope of the resulting curve is

A. Force
B. Force/m
C. Work
D. Force/m³
E. Energy/m³

Question 13:

• JAMB 1985

Two thermo flasks of volume Vx and Vy are filled with liquid water at an initial temperature of 0^oC. After sometime the temperature were found to be 9x, 9y, respectively. Given that \(\frac{Vx}{Vy}\) = 2 and \(\frac{\theta x}{\theta y}\) = \(\frac{1}{2}\) the ratio of the heat flow into the flask is

A. \(\frac{1}{4}\)
B. \(\frac{1}{2}\)
C. 4
D. 1
E. 2

Question 14:

• JAMB 1986

A gas occupies a volume of 300cm³at a temperature of 27^oC. What is its volume at 54^oC, when the pressure is constant?

A. 150cm³
B. 273cm³
C. 327cm³
D. 600cm³

Question 15:

• JAMB 1988

The product PV where P is pressure and V is volume has the same unit as

A. Force
B. Power
C. Energy
D. Accelaration