Question

mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. he decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat. where is mintus error? mintu should have decreased the size of the metal iron. mintu should have decreased the time he touches the two metals. mintu should have chosen a material with a lower specific heat. mintu should have chosen a material the same temperature as the iron.

Explanation:

The formula for heat transfer \(Q = mc\Delta T\) (where \(m\) is mass, \(c\) is specific heat, and \(\Delta T\) is temperature change). To increase heat transfer \(Q\), if other factors (mass \(m\), temperature difference \(\Delta T\)) are considered (time of contact can relate to thermal equilibrium attainment in some heat - transfer scenarios, and larger metal iron can relate to more mass transfer in some heat - exchange setups), a material with lower specific heat \(c\) will lead to a larger temperature change \(\Delta T\) (for a given amount of heat \(Q\)) or for a given temperature change, less heat is required to change its temperature. So choosing a material with lower specific heat will enhance heat transfer.

Answer:

Mintu should have chosen a material with a lower specific heat.