Which gas effuses faster: hydrogen or chlorine? How much faster?
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Hydrogen
Hydrogen effuses about 5.9 times as fast as chlorine.
Explanation:
Graham's law of effusion states that the rates of effusion of two different gases vary INVERSELY as the SQUARE roots of the mass of their particles.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯∣∣ ∣∣aaRate2Rate1=√M1M2aa∣∣ ∣∣−−−−−−−−−−−−−−−−−−−
where Rate1 and Rate2 are the rates of the two gases and
M1 amd M2 are their respective relative molar masses.
In this problem, we can say
Chlorine gas has M1 of 70.91
Hydrogen gas has M2 of 2.016
∴ Rate2Rate1=√70.912.0162=√35.17=5.931
Hydrogen effuses approximately 6 times as fast as chlorine.
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Answered by
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Explanation:
Hydrogen effuses about 5.9 times as fast as chlorine.
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