Question

two solid blocks are heated to the temperatures shown. the blocks are placed so they touch. which diagram shows the direction heat will flow? 14°f 14°f 14°f heat no heat flow 0°f 0°f 0°f

Explanation:

Step1: Recall heat transfer rule

Heat flows from higher temperature to lower temperature.

Step2: Compare temperatures

The first block is \(14^\circ\text{F}\), the second is \(0^\circ\text{F}\). So heat should flow from \(14^\circ\text{F}\) (higher) to \(0^\circ\text{F}\) (lower), i.e., to the right.

Step3: Identify correct diagram

The middle diagram has heat arrow pointing right (from \(14^\circ\text{F}\) to \(0^\circ\text{F}\)). The left has wrong direction (from cold to hot), the right says no heat flow (incorrect as temperatures differ).

Answer:

The Middle Diagram