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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 gas 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

Respuesta :

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 [tex]CO_{2}[/tex], HCN, [tex]N_{2}[/tex] and [tex]NH_{3}[/tex] 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 = [tex]\frac{1}{\sqrt{M}}[/tex]

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.

samueladesida43

Sodium bromide (NaBr) is most likely not a gas at room temperature.

WHAT IS A GAS?

A gas is one of the three states in which matter can exist. A gas is characterized by its particles that moves randomly.

According to this question, a gas is a molecular compound of low molecular weight.

This means that the following compounds with their molecular weight are gases:

  1. carbon dioxide- 44 g/mol
  2. Ammonia = 17 g/mol
  3. Hydrogen cyanide = 27.03 g/mol

Therefore, sodium bromide (NaBr) with a molecular weight of 102.09g/mol is most likely not a gas.

Learn more about gases at: https://brainly.com/question/1369730

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