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

The statement which best describes the direction of heat flow by conduction between two samples of the same material is that Heat flows from faster molecules to slower molecules when they collide.

Correct Answer : Option B

Explanation:

Heat energy transfer or flow or simply say the conduction of heat energy is only possible through the contact of the samples in regard. therefore, it narrows down to the two given options, which states that the two samples collide. Collision is the contact which would assist the heat energy conduction.

Now, the energy transfer takes places from a medium of high heat to a medium of low heat which is down the gradient of heat. As when two object are in contact, hot and cold object, heat flows from hot object to cold object. Here the molecule speed is stated. The molecule which is moving faster has higher kinetic energy which is possessed by a molecule having high heat energy. Thereby, heat flows from faster molecule to slower molecules.

b

Explanation:

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