What is the mass of a heated copper ball if, when it cools down by 10 degrees, it releases 7.6 kJ of heat
| December 3, 2020 | education
What is the mass of a heated copper ball if, when it cools down by 10 degrees, it releases 7.6 kJ of heat into the environment? (Specific heat capacity of copper 380J / kg
Given:
t = 10 ° C
Q = 7.6 kJ
s = 380 J / kg ° C
Find: m -?
Decision:
We use the formula Q = cm∆t
Take out m = Q / c∆t
Q = 7600 J
m = 7600/380 * 10
m = 2 kg
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