Mention the term defined by the following sentence:
The mass of a given volume of gas compared to the mass of an equal volume of hydrogen.
Relative vapour density is defined as the ratio of mass of a given volume of gas to the mass of an equal volume of hydrogen.
(a) Is it possible to change the temperature and pressure of a fixed mass of a gas without changing its volume? Explain your answer.
(b) Define or explain the meaning of the term 'molar volume'.