Consider two flasks of idetical volumes containing identical masses of gas: the
ID: 636783 • Letter: C
Question
Consider two flasks of idetical volumes containing identical masses of gas: the first contains pure Ar, the second pure He. Given that the gas pressure is the same in both flasks, identify which of the following statements are correct.
(i) There are more particles in the He containing flask.
(ii) The gas temperature is higher in the He containing flask.
(iii) The molecular mean free path is larger in the Ar containing flask.
(iv) The particles in the Ar containing flask have a lower average kinetic energy.
(v) The pressure is higher in the He containing flask after both flasks are cooled to the same temperature.
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (i), (ii) and (iv)
(d) (i), (iii) and (v)
(e) (ii), (iii) and (v)
Explanation / Answer
Answer E is correct as there will be higher temperature in He containing flask along with the high pressure when both flasks are cooled down at same temperature in comparison to te AR containing flas as the molecular mean free path is larger in the Ar containing flask