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N76 [4]
3 years ago
9

Fill in the blank questions usually require

Chemistry
2 answers:
TiliK225 [7]3 years ago
6 0
The answer is a because a fill in the blank is always just one word
Butoxors [25]3 years ago
6 0

Answer:

A

Explanation:

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Which of the following gases effuses the fastest at a given temperature?
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Answer: -

H₂ will diffuse the fastest.

Explanation: -

According to Graham's Law of Diffusion

The rate of diffusion is inversely proportional to the square root of it's density or molar mass. So the lower the molar mass faster the rate of diffusion.

Molar mass of Ne = 20 g / mol

Molar mass of CH₄ = 12 x 1 + 1 x 4 = 16 g /mol

Molar mass of Ar = 40g / mol

Molar mass of H₂ = 1 x 2 = 2 g / mol

Thus H₂ will diffuse the fastest.

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