The diagram is for three materials with different thermal conductivities. I think number 1 is the material with higher thermal conductivity because it transfers the heat faster so it gets to the steady temperature sooner than the other two. Am I right? If not or if my reasoning isn't correct, I appreciate your help.

enter image description here


1 Answer 1


$\dot{Q} = k A \frac{\Delta T}{l}$

$l$ thickness

$A$ surface area

From this follows that besides other factors the rate of heatflow is proportional to the thermal conductivity $k$.

$\dot{Q} \propto k$

Therefore a high thermal conductivity allows for a fast heat transfer, hence your interpretation that a fast change in temperature correlates with a high thermal conductivity is right.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.