Which change occurs due to the addition of thermal energy to a substance?(1 point)

Question

Responses

There is a decrease in the kinetic energy of its particles and a decrease in temperature.
There is a decrease in the kinetic energy of its particles and a decrease in temperature.

There is an increase in the kinetic energy of its particles and a decrease in temperature.
There is an increase in the kinetic energy of its particles and a decrease in temperature.

There is an increase in the kinetic energy of its particles and an increase in temperature.
There is an increase in the kinetic energy of its particles and an increase in temperature.

There is a decrease in the kinetic energy of its particles and an increase in temperature.

Answer 1

The correct response is:

There is an increase in the kinetic energy of its particles and an increase in temperature.

When thermal energy is added to a substance, the kinetic energy of its particles increases, which typically leads to an increase in temperature.

Answer 2

Liquid water becomes a gas at a certain temperature. Which changes will occur in the molecules of water? (1 point)
Responses

The molecules will have more potential energy because they will be farther apart.
The molecules will have more potential energy because they will be farther apart.

The molecules will have more kinetic energy because they will be farther apart.
The molecules will have more kinetic energy because they will be farther apart.

The molecules will have more kinetic energy because they will be moving faster.
The molecules will have more kinetic energy because they will be moving faster.

The molecules will have more potential energy because they will be moving faster.

Answer 3

The correct response is:

The molecules will have more kinetic energy because they will be moving faster.

As liquid water transitions to a gas (during the process of vaporization), the molecules gain energy, causing them to move faster and thus have more kinetic energy.

Answer 4

Incorrect

The kinetic energy of the particles will not increase.

Answer 5

I apologize for the confusion. In the context of liquid water turning into a gas (evaporation or boiling), the key change involves the potential energy of the molecules.

The correct response should be:

The molecules will have more potential energy because they will be farther apart.

As the water molecules gain energy (during the phase change from liquid to gas), they move farther apart, which increases their potential energy. Thank you for your patience, and I'm sorry for any misunderstanding.

Answer 6

Incorrect

Kinetic energy is not related to particle position.

Answer 7

I apologize for the confusion in my previous responses. Let's clarify the concepts:

When liquid water becomes a gas, the following occur:

• The molecules do gain energy, which allows them to overcome intermolecular forces and move farther apart.
• During this transition, while there may not necessarily be a significant increase in temperature (which is a measure of average kinetic energy), the molecules do indeed gain energy which affects their movement.

Considering this, the correct response should be:

The molecules will have more potential energy because they will be farther apart.

This is because, as molecules transition from a liquid to a gas, they do increase in potential energy as they separate from one another against the attractive forces holding them together in the liquid state.

I appreciate your patience, and I hope this accurately addresses the question. Thank you for your understanding.