A 0.5 mol sample of He(g) and a 0.5 mol sample of Ne(g) are placed separately in two 10.0 L rigid co — States of Matter Chemistry Question
Question
A 0.5 mol sample of He(g) and a 0.5 mol sample of Ne(g) are placed separately in two 10.0 L rigid containers at 25°C. Each container has a pinhole opening. Which of the gases, He(g) or Ne(g), will escape faster through the pinhole and why?
A.✓ Correct
He(g) will escape faster because the He(g) atoms have a higher average speed than the Ne(g) atoms.
B.
Ne(g) will escape faster because its initial pressure in the container is higher.
C.
Ne(g) will escape faster because the Ne(g) atoms have a higher average kinetic energy than the He(g) atoms.
D.
Both gases will escape at the same rate because the atoms of both gases have the same average kinetic energy.
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