(a(i))[1]
State the value assigned to absolute zero on the Celsius temperature scale.
(a(ii))[1]
State the value of absolute zero on the thermodynamic temperature scale. Include a unit in your response.
(b(i))[1]
State what the variation shown in Fig. 4.1 indicates about the nature of the gas.
(b(ii))[2]
Determine how many molecules, $N$, are present in the gas sample.
(b(iii))[1]
Use your answer from (b)(ii) to find the amount $n$ of gas in the sample.
(c)[4]
When $pV$ is $270\,\text{J}$, the root-mean-square (r.m.s.) speed of the gas molecules is $1900\,\text{m s}^{-1}$. Find the mass, in $\text{u}$, of one molecule of the gas, where $\text{u}$ denotes the unified atomic mass unit.