It was calculated that when a piece of tin with a mass of 20 g was cooled, its internal energy decreased by 1 kJ

It was calculated that when a piece of tin with a mass of 20 g was cooled, its internal energy decreased by 1 kJ. From this data, determine by how many degrees the temperature of the tin has changed.

The amount of heat that a piece of tin will give up during cooling is calculated by the formula:

Q = C * m * ∆t, where Q is the amount of heat given off by a piece of tin (Q = 1 kJ = 10³ J), C is the specific heat capacity of tin (C = 230 J / (kg * K)), m is the mass of a piece of tin (m = 20 g = 0.02 kg), ∆t is the change in the temperature of a piece of tin (ºС).

Let’s calculate the change in temperature of a piece of tin:

∆t = Q / (C * m) = 10³ / (230 * 0.02) = 217.4 ºС.

Answer: A piece of tin will cool down by 217.4 ºС.