States of Matter - Result Question 22
####22. At STP, $0.50 mol H_2$ gas and $1.0 mol He$ gas
(a) have equal average kinetic energies [1993]
(b) have equal molecular speeds
(c) occupy equal volumes
(d) have equal effusion rates
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Solution:
- (a) Average kinetic energy depends only on temperature $(.$ K.E. $.=\frac{3}{2} k T)$