Which of the following are reasons why increasing concentration of reactants increases the rate of reaction? A. Increase in reactant particle speed
B. Increase in frequency of reactant particle collisions
C. increase in kinetic energy of reactant particles
D. increased energy of individual collisions.
E. All of the above

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? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.