You just calculated that the heat of fusion for chloromethane is 6400 J/mol. The heat of fusion for hydrogen is 120 J/mol. Which of the following account for this difference? Check all that apply. View Available Hint(s) Check all that apply. Hydrogen molecules can pack more closely than chloromethane molecules. Chloromethane can absorb more energy at the same temperature. Chloromethane experiences dipole-dipole interactions. Hydrogen has stronger intermolecular forces than chloromethane. Chloromethane has a higher molar mass than hydrogen.

The molar mass is directly proportional to the heat of fusion, since the heavier the molecules the more energy they need to separate. Intermolecular forces are also directly proportional to the heat of fusion, because the greater the interaction they experience, the more energy they require to separate. The dipole-dipole interactions experienced by chloromethane are stronger than the interactions that take place in hydrogen.

ayfat23 ayfat23 · Answer 2 · 2022-03-31T13:35:35+02:00

What account for difference in heat of fusion for chloromethane and hydrogen is that ;

Chloromethane experiences dipole-dipole interactions.

Chloromethane has a higher molar mass than hydrogen.

What is heat of fusion?

The heat of fusion serves as the quantity of heat needed to change 1 g of a solid to a liquid with no temperature change.

Since the molar mass is directly proportional to the heat of fusion,then chloromethane has higher molar mass hence , the value of heat of fusion.

The dipole-dipole interactions of chloromethane is also high.

Learn more about heat of fusion at;

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