Liquid oxygen boils at 90 K90\text{ K}90 K.
Convert 90 K90\text{ K}90 K to a temperature in ∘C{}^\circ\text{C}∘C.
Liquid oxygen boils to form gaseous oxygen. State two ways in which the arrangement and motion of the oxygen molecules change as the liquid transitions into a gas.
The average kinetic energy of the molecules in an ideal gas depends on its temperature. Sketch a graph to show this relationship, clearly labelling both axes.
A student sets up the apparatus shown below to investigate how the volume of a trapped sample of dry air varies with temperature at a constant pressure.

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: