What amount of heat is required to heat zinc weighing 10 kg from 20 C to 160 C
| June 23, 2021 | education
What amount of heat is required to heat zinc weighing 10 kg from 20 C to 160 C (specific heat capacity of zinc C = 400 J / kg C)
Given: m (mass of zinc to be heated) = 10 kg; t0 (zinc temperature before heating) = 20 ºС; t (required temperature) = 160 ºС.
Constants: according to the condition Cs (specific heat of zinc) = 400 J / (kg * ºС).
The heat required to heat 10 kg of zinc is calculated by the formula: Q = Cc * m * (t – t0).
Calculation: Q = 400 * 10 * (160 – 20) = 400 * 10 * 140 = 560 * 10 ^ 3 J (560 kJ).
Answer: Heating 10 kg of zinc requires 560 kJ of heat.
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