Gas Laws - Jamb Physics Past Questions and Answers

Question 41:

• JAMB 2016

Calculate the temperature of 6 moles of an ideal gas at a pressure of 7.6 x 10⁶Nm^-2 with a volume of 10^-3m³.
[R = 8.3jmol^-1K^-1]

A. 201^oC
B. 126^oC
C. 153^oC
D. 185^oC

Question 42:

• JAMB 2016

What will happen to the pressure of a gas if its temperature is reduced to -273^oC?

A. It will decrease
B. It will drop to zero
C. It will increase
D. It will remain constant

Question 43:

• JAMB 2017

The volume of a fixed mass of gas is 10cm³ when its pressure is 400cmHg. Determine the volume of the gas when its pressure is 200cmHg.

A. 30cm³
B. 40cm³
C. 50cm³
D. 20cm³

Question 44:

• JAMB 2019

The volume of 0.354g of helium at 273°C and 114cm of mercury pressure is 2667cm\(^3\). Calculate the volume

A. 2000.25 cm\(^3\)
B. 200.025 cm\(^3\)
C. 4003.27 cm\(^3\)
D. 2010.25 cm\(^3\)

Question 45:

• JAMB 2021

A given mass of gas has a pressure of 80 Nm\(^{-2}\) at a temperature of 47 C. If the temperature is reduced to 27 C with volume remaining constant, the new pressure is?

A. 46.0 Nm\(^{-2}\)
B. 75.0 Nm\(^{-2}\)
C. 80.0 Nm\(^{-2}\)
D. 85.3 Nm\(^{-2}\)