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?



(1 point)
Responses

Block A
Block A

Block B
Block B

Block C

Answer 1

I can’t tell which diagram is correct from the text alone — I don’t have the pictures or the temperatures for each block. Please either upload the diagrams or describe each one (which block is hotter and which way the arrows point).

General rule you can use to choose the correct diagram: heat flows from the hotter object to the colder object (by conduction here at the contact) until thermal equilibrium is reached. If both blocks are at the same temperature there is no net heat flow.