Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. IGCSE
  2. Physics Edexcel
  3. Question bank

Ideal gas molecules

EasyMedium
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
Question 56

Liquid nitrogen boils at 77 K77\text{ K}77 K.

a.

Convert 77 K77\text{ K}77 K to a temperature in ∘C{}^\circ\text{C}∘C.

[2]
b.

Liquid nitrogen boils to form nitrogen gas. State two ways in which the arrangement and motion of the molecules change as the nitrogen becomes a gas.

[2]
c.

The average kinetic energy of the molecules in a gas depends on its temperature in Kelvin. Sketch a graph to show this relationship, clearly labeling the axes.

[2]
d.

A student uses the apparatus shown below to investigate the relationship between the temperature and the volume of a gas at constant pressure.

A vertical capillary tube with a trapped column of air and a liquid index plug

Describe how this apparatus can be set up and used to investigate how the volume of the trapped air column varies with temperature. In your description, you should:

  • identify any additional measuring instruments needed
  • explain how the temperature of the air is varied and measured
  • explain how the volume of the trapped air is measured
  • state how the results can be analyzed to show the relationship.
[4]

Ideal gas molecules Questions

  1. IGCSE
  2. /Physics
  3. /Ideal gas molecules