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horrorfan [7]
2 years ago
9

Of the following gases, ______ will have the greatest rate of effusion at a given temperature.A) NH3B) CH4C) ArD) HBrE) HCl

Chemistry
1 answer:
s344n2d4d5 [400]2 years ago
7 0

Answer:

CH₄

Explanation:

According to Graham's law, <em>the rate of effusion of a gas (r) is inversely proportional to the square root of its molar mass (M)</em>.

Let's consider the following gases and their molar masses.

A) NH₃    17.03 g/mol

B) CH₄    16.04 g/mol

C) Ar       39.95 g/mol

D) HBr    80.91 g/mol

E) HCl     36.46 g/mol

Of these gases, CH₄ will have the greatest rate of effusion at a given temperature because it has the lowest molar mass.

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