leanna4 leanna4

05-03-2018
Chemistry

contestada

6.0 g of copper was heated from 20 degree c to 90 degree c . How much energy was used to heat cu?

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andriansp andriansp

15-03-2018

Copper heat capacity would be 0.385J/C*gram which means it needs 0.385 Joule of energy to increase 1 gram of copper temperature by 1 Celcius. The calculation would be:
energy= heat capacity *mass * temperature difference
energy= 0.385J/C*gram * 6g * (90-20)
energy= 161.7J

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