Answer
$\mathrm{a}.\quad$unknowable
$\mathrm{b}.\quad$false
$\mathrm{c}.\quad$unknowable
$\mathrm{d}.\quad$false
$\mathrm{e}.\quad$true
Work Step by Step
The rms (root mean square) speed of the molecules in a gas at the Kelvin temperature $T$ is
$v_{\mathrm{r}\mathrm{m}\mathrm{s}}=\sqrt{\frac{3kT}{m}}=\sqrt{\frac{3RT}{M}}\qquad( 17- 13 )$
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$\mathrm{a}.$
To calculate pressure P, we need N, V and T ($PV=NkT$).
We don't have enough information here.
$\mathrm{b}.$
From 17-13, $\displaystyle \mathrm{T}=\frac{\mathrm{v}_{\mathrm{r}\mathrm{m}\mathrm{s}}^{2}\cdot \mathrm{m}}{3\mathrm{k}}$, so with v being constant,
T and m are proportional.
Hydrogen has less mass, so it has a smaller temperature (not higher).
$\mathrm{c}.$
As stated in (a), pressure cannot be calculated.
$\mathrm{d}.$
See part (b). Oxygen has greater mass, so it has a greater temperature (not equal).
$\mathrm{e}.$
Yes, oxygen is at a higher temperature because it has a higher molecular mass (part b).
