How much heat is required to melt a 2.5 g silver ring heated to the melting point.

Initial data: m (weight of the silver ring for melting) = 2.5 g (2.5 * 10 ^ -3 kg); the silver ring is heated to its melting point (961.9 ºС).

Reference values: λ (specific heat of fusion of silver) = 87 * 10 ^ 3 J / kg.

The amount of heat that will need to be spent to melt the silver ring is calculated by the formula: Q = λ * m.

Let’s perform the calculation: Q = 87 * 10 ^ 3 * 2.5 * 10 ^ -3 = 217.5 J.

Answer: To melt a silver ring, you need 217.5 Joules of heat.