Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a ga

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Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a ga

s at room temperature? Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a gas at room temperature? NaBr CO2 HCN N2 NH3

Chemistry

1 answer:

Sindrei [870] · Answer 1 · 2022-02-24T01:48:53+03:00

Answer: Option (a) is the correct answer.

Explanation:

Sodium bromide (NaBr) is an ionic salt as it is formed by transfer of an electron from sodium to bromine atom.

Whereas $CO_{2}$ , HCN, $N_{2}$ and $NH_{3}$ are all covalent compounds. And, all of them exists as a gas at room temperature.

Also according to rate of diffusion law, rate of diffusion is inversely proportional to square root of molecular weight of gas.

Mathematically, Rate of diffusion = $\frac{1}{\sqrt{M}}$

Out of the given options NaBr has the highest molecular weight which is 102.894 g/mol.

Thus, we can conclude that NaBr is most likely not a gas at room temperature.