Find the amount of heat required to melt 500 g ice taken at 0 ° C.

Problem data: m (mass of ice to be melted) = 500 g (in SI m = 0.5 kg); t0 (initial temperature of taken ice) = 0 ºС.

Reference values: λ (specific heat of melting of ice) = 3.4 * 10 ^ 5 J / kg.

The required heat for melting the taken ice is determined by the formula: Q = λ * m.

Let’s make a calculation: Q = 3.4 * 10 ^ 5 * 0.5 = 1.7 * 10 ^ 5 J (170 kJ).

Answer: To melt 500 g of ice, you need 170 kJ of heat.