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Wednesday, 19 August 2026
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Physics Past Questions and Answers

Topic: Structure of Matter and Kinetic Theory

Jamb Physics Questions - Structure of Matter and Kinetic Theory

Question 216:
Which of the following is not correct about the molecules of a substance in a gaseous state. They?
  • A Are in a constant state of motion
  • B Have different speeds
  • C Have a temperature which is measured by the average kinetic energy
  • D The collision between the gases is perfectly inelastic
View Answer & Explanation
Question 217:
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\(^{-2}\)
View Answer & Explanation
Question 218:
The vapour pressure?
  • A Increases non-linearly with measuring temperature
  • B Increases linearly with increasing temperature
  • C Decreases linearly with increasing temperature
  • D Decreases non-linearly ith measuring temperature
View Answer & Explanation
Question 219:
Water is not a good thermometric liquid because it?
  • A Expands unevenly between 0 ºC and 4 ºC
  • B Maintains fixed density
  • C Has low freezing point
  • D Wets glass
View Answer & Explanation
Question 220:
The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?
  • A Hyperbola
  • B Parabola
  • C Curve
  • D Straight line
View Answer & Explanation