Problem data: Δt (temperature change of the silver figurine) = 20 ºС; Q (consumed thermal energy for heating the figurine) = 1 kJ = 1 * 10 ^ 3 J.
Reference values: Cc (specific heat of silver) = 250 J / (kg * K).
The mass of a silver figurine can be expressed from the formula for calculating heat: Q = Cc * m * Δt and m = Q / (Cc * Δt).
Let’s calculate: m = 1 * 10 ^ 3 / (250 * 20) = 0.2 kg (200 g).
Answer: The weight of the silver figurine is 200 grams.
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