How much heat must be spent to heat an aluminum frying pan weighing 500 grams on a whip
| August 1, 2021 | education
How much heat must be spent to heat an aluminum frying pan weighing 500 grams on a whip from 20 to 220 degrees Celsius.
The amount of heat for heating on the plate of an aluminum frying pan:
Q = C * m * (tc – tn), where C is the specific heat capacity of aluminum (C = 903 J / (kg * K)), m is the mass of an aluminum frying pan (m = 500 g = 0.5 kg), tc— the final temperature of the frying pan (tк = 220 ºС), tн – the initial temperature of the pan (tн = 20 ºС).
Q = C * m * (tc – tn) = 903 * 0.5 * (220 – 20) = 903 * 0.5 * 200 = 90300 J = 90.3 kJ.
Answer: To heat an aluminum frying pan on the stove, you need 90.3 kJ of heat.
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