Consider the compounds cl2 hcl f2 naf and hf. which compound has a boiling point closest to that of argon?

2 answers:

swat323 years ago

3 0

The answer is F2, it has the boiling point that is closest to Argon.
Cl2 is a molecule that is larger than F2 so it has larger london dispersion forces than F2 and NaF has high boiling point as it is an ionic compound and HCl and Hf both also have high boiling point. Argon has very low boiling point so F2 has the boiling point that is closest to the Argon.

nadezda [96]3 years ago

3 0

Answer:

F₂

Explanation:

The boiling point depends on the molecular mass of the compound and the intermolecular forces. As stronger the forces, as higher will be the boiling point. Compounds with close molar mass thus intend to have close boiling points.

The molar mass or argon is 40 g/mol, and for the compounds given:

Cl₂ = 2*35.5 = 71 g/mol

HCl = 1 + 35.5 = 36.5 g/mol

F₂ = 2*19 = 38 g/mol

NaF = 23 + 19 = 42 g/mol

HF = 1 + 19 = 20 g/mol

So, F₂ and NaF have the closest molar mass to argon, but NaF is an ionic compound, which has strong forces, so it's solid in the ambient temperature. F₂ has weak London forces because is a nonpolar molecule. Thus, because argon is a gas at the ambient temperature, F₂ would have the closest boiling point.

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ivolga24 [154]

Given what we know, we can confirm that despite not being able to provide a visual representation, if you were to create one, it would show the atoms in the substance moving with <u>more and more </u>energy over time until vaporization occurred.

<h3>What is vaporization?</h3>

Vaporization is the changing of a liquid into a gas.
This is known as a phase change.
This happens when the atoms receive enough heat energy.
The heat energy provides the atoms with kinetic energy and causes them to move faster over time.
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Therefore, given that vaporization is when atoms within a substance gain so much kinetic energy that they are able to rupture the bonds that hold them relatively close together and change into a gas, we can confirm that a visual representation would have to be a diagram showing the increased movement of atoms over time.