Question

diagram 1 (arrow from 35°c box to 105°c box) diagram 2 (arrow from 105°c box to 35°c box)
which of the following depictions correctly describes the flow of heat?
options: diagram 2, both diagrams are incorrect, diagram 1

Explanation:

Heat flows from a higher - temperature object to a lower - temperature object. The temperature of the first object is \(35^{\circ}C\) and the second is \(105^{\circ}C\). So heat should flow from the \(105^{\circ}C\) object to the \(35^{\circ}C\) object. In Diagram 2, the heat flow direction (from \(105^{\circ}C\) to \(35^{\circ}C\)) is correct, while in Diagram 1, the direction is wrong (from \(35^{\circ}C\) to \(105^{\circ}C\)).

Answer:

Diagram 2