When liquid helium is exposed to room temperature, it forms a gas. which best explains why this happens?

the liquid helium absorbs energy from the air in the room.

the particles in the air absorb the energy of the liquid helium.

the helium particles release energy and slow down.

the air in the room has less energy than the liquid helium.

Option (a) is the correct answer.

Explanation:

When liquid helium  is exposed to room temperature then it absorbs energy from the surroundings or atmosphere. As a result, kinetic energy of helium molecules increases and thus, force of attraction between the molecules decrease.

Therefore, liquid helium changes into gas.

Hence, we can conclude that the liquid helium absorbs energy from the air in the room best explains when liquid helium is exposed to room temperature, it forms a gas.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."