Question #f83a8
1 Answer
The temperature difference affects the flow rate. The bigger the difference, the more is the heat flow rate.
Explanation:
Consider two long identical iron rods Rod A and Rod B. One end of each rod dips inside a bucket of ice water. (Two rods, two buckets of equal amount of ice water.)
The dry end of Rod A is heated by propane flame to become red hot, i.e.,
The temperature difference between the two ends of Rod A is at least
Heat always flows from high temperature to low temperature. You can prove the heat flow rate is indeed depending on temperature difference by observing which rod warms up the ice water first and by how much.