Task data: m (mass of taken sand) = 1 m3; Δt (required change in sand temperature) = 60 ºС.
Reference values: ρ (bulk density of sand) = 1500 kg / m3; Cn (specific heat capacity of sand) = 0.835 kJ / (kg * K) = 835 J / (kg * K).
The required amount of heat for heating 1 m3 of sand is determined by the formula: Q = Cp * m * Δt = Cp * ρ * V * Δt.
Calculation: Q = 835 * 1500 * 1 * 60 = 75.15 * 10 ^ 6 J (75.15 MJ).
Answer: To heat 1 m3 of sand, 75.15 MJ of heat is required.
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