Liquid nitrogen boils at 77 K77\text{ K}77 K.
Convert 77 K77\text{ K}77 K to a temperature in ∘C{}^\circ\text{C}∘C.
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.
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.
A student uses the apparatus shown below to investigate the relationship between the temperature and the volume of a gas at 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: