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At S.T.P. 0.50 mol of H(2) gas and 1.-0...

At S.T.P. 0.50 mol of `H_(2)` gas and 1.-0 mol of He gas

A

have equal kinetic energies

B

have equal molecular speeds

C

occupy equal volumes

D

have equal effusion rates.

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The correct Answer is:
A
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