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What will be the final temperature if 2000g of copper at 95C loses 10 kcal of...

What will be the final temperature if 2000g of copper at 95C loses 10 kcal of heat?
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Answer #1

specific heat capacity of copper, C = 0.385 J/g.oC

q = 10 kcal = 10*4.184 KJ = 41.84 KJ = 41840 J

m = 2000 g

Ti = 25.4 oC

use:

Q = m*C*(Tf-Ti)

41840 = 2000*0.385*(Tf-95)

Tf -95 = 54.34 oC

Tf = 149 oC

Answer: 149 oC

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