Heated stone weighing 5 kg, cooling in water 10C, transfers 2.1 kJ of energy. What is the specific heat capacity

Heated stone weighing 5 kg, cooling in water 10C, transfers 2.1 kJ of energy. What is the specific heat capacity of a stone equal to?

Task data: m (mass of heated stone) = 5 kg; Δt (change in stone temperature) = 1 ºС; Q (the amount of heat that the stone transferred to the water) = 2.1 kJ (2.1 * 10 ^ 3 J).

We express the specific heat capacity of a given stone from the formula: Q = C * m * Δt, whence C = Q / (m * Δt).

Let’s calculate: C = 2.1 * 10 ^ 3 / (5 * 1) = 420 J / (kg * K).

Answer: The stone has a specific heat capacity of 420 J / (kg * K).