Which statements below describe the changes that molecules undergo when heat is applied to a single phase? (Select all that apply.) a. The heat energy causes an increase in the bond vibrations within the molecule. b. The heat energy is used to overcome the intermolecular forces between molecules. c. The heat energy is used to increase the kinetic energy of the molecules, raising the temperature.

Question

Amber Hess

Physics

20 September, 16:38

Which statements below describe the changes that molecules undergo when heat is applied to a single phase? (Select all that apply.) a. The heat energy causes an increase in the bond vibrations within the molecule. b. The heat energy is used to overcome the intermolecular forces between molecules. c. The heat energy is used to increase the kinetic energy of the molecules, raising the temperature.

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Answers (1)

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Brisa Barker · Answer 1

c. The heat energy is used to increase the kinetic energy of the molecules, raising the temperature.

Explanation:

When heat is supplied to the molecules of single phase then we can say that thermal energy given to the molecules will definitely increase their internal energy.

But as we know that all the the molecules here are in single phase so the vibrational energy will not exist here

So we will say that heat energy given to the molecules will only increase their kinetic energy due to which the temperature will increase.

So here correct answer will be given as

c. The heat energy is used to increase the kinetic energy of the molecules, raising the temperature.