Which factors affect heat transfer between a warm and a cool substance?
the time it took to hear the substance, the area of contact and the specific heats of the substances
the amount of time of contact, the area of contact, and the specific heals of the substances
the time it took to heat the substance, the area of the substances, and the specific heats of the substances
the amount of time of contact, the area of the substances, and the specific heats of the substances

The amount of time of contact, the area of contact, and the specific heals of the substances, the factors affect heat transfer between a warm and a cool substance.

Option B

Explanation:

Heat transfers from a very hot body always, and into a colder body. This is due to the change in temperatures at which the two bodies exist, and also it depends upon its magnitude. And, the heat exchange stop once both the bodies attain same temperature.

And from the relation of heat equation, we get that it is directly proportionate to the substance's specific heat. But, there is no such thing that the area of contact is important, for heat transfer. It gets transferred although a small point is in contact.

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