How much heat needs to be transferred to a 5 kg piece of ice with a temperature of 0 degrees so that it completely melts?

Initial data: m (mass of a piece of ice) = 5 kg; a piece of ice is at the melting point (t = 0 ºC).

Reference values: λ (specific heat of melting of ice) = 340 kJ / kg = 340 * 10 ^ 3 J / kg.

The required amount of heat that needs to be transferred to a piece of ice is determined by the formula: Q = λ * m.

Let’s perform the calculation: Q = 340 * 10 ^ 3 * 5 = 1700 * 10 ^ 3 J = 1.7 MJ.

Answer: A piece of ice needs to transfer 1.7 MJ of heat.