Question

which statement best describes the direction of heat flow by conduction between two samples of the same material? heat flows from faster molecules to slower molecules when they are near. heat flows from faster molecules to slower molecules when they are near. heat flows from slower molecules to faster molecules when they collide. heat flows from slower molecules to faster molecules when they collide.

Explanation:

In conduction, heat transfer occurs due to molecular collisions. Faster - moving molecules have higher kinetic energy. When faster and slower molecules collide, heat (energy) is transferred from the faster molecules to the slower ones.

Answer:

Heat flows from faster molecules to slower molecules when they collide.