Question

An iron ball at 40 degree Celsius is dropped in a mug containing water at 50 degree Celsius. The heat will be flow where

Answer 1

This is the concept of thermal equilibrium. According to the question, an iron ball at 40 degrees Celsius is dropped in a mug containing water at 50 degrees Celsius, where will the heat flow.

According to heat transfer, object with more temperature will transfer heat to object with less temperature, till they become equal. So, the heat transfer will take place between the water and the iron ball. The heat from the water will be transferred to the iron ball which has less temperature, until they come to thermal equilibrium.