Question

what happens to the particles in a liquid when you raise the temperature? the particles get bigger. the particles slow down. the particles lose mass. the particles move faster.

Explanation:

According to the kinetic - molecular theory of matter, when the temperature of a liquid is raised, the thermal energy is transferred to the particles. This increase in energy causes the particles to gain more kinetic energy. Kinetic energy is related to the motion of particles. An increase in kinetic energy means the particles move faster.

• The size of particles (atoms/molecules) in a liquid does not change with temperature change (unless there is a chemical reaction which is not indicated here). So, the statement "The particles get bigger" is incorrect.
• When temperature increases, particles gain energy and do not slow down. Slowing down would require a decrease in energy (e.g., when temperature is lowered). So, "The particles slow down" is wrong.
• The mass of individual particles (assuming no chemical reaction or phase change that involves mass transfer, which is not the case here) remains constant. So, "The particles lose mass" is incorrect.

Answer:

The particles move faster.