two solid blocks are heated to the temperatures shown. the blocks are placed so they touch. which diagram…
two solid blocks are heated to the temperatures shown. the blocks are placed so they touch. which diagram shows the direction heat will flow?
Answer
Explanation:
Step1: Recall heat - flow principle
Heat always flows from a region of higher temperature to a region of lower temperature.
Step2: Identify temperatures
One block is at $3^{\circ}C$ and the other is at $0^{\circ}C$. The $3^{\circ}C$ block is at a higher temperature.
Step3: Determine heat - flow direction
Heat will flow from the $3^{\circ}C$ block to the $0^{\circ}C$ block.
Answer:
The diagram with the arrow pointing from the $3^{\circ}C$ block to the $0^{\circ}C$ block.