An iron ball 2 kg , sp. heat 440J/kgC is cooled 30C to 20 C. Heat released ?
1 Answer
Given,
mass of iron ball m = 2 kg
sp. heat capacity = 440J/kg°C
difference in temp dt = 30 -20
= 10 °C
Amount of heat released Q = ??
We have,
Q= msdt
Q= 2 *440 * 10
= 8800 J
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