Answer to Question #178507 in General Chemistry for sam

Question #178507

A 70.0 g piece of metal at 80.0oC is placed in 1.0 x 102 g of water at 22.0oC contained in a calorimeter. The metal and water come to the same temperature at 24.6oC. How much heat (in kJ) did the metal give up to the water?


1
Expert's answer
2021-04-06T04:35:19-0400

Cp(H2O) = 4,18 "\\frac{J}{g\\times K}"

"\\Delta"T(H2O) = (24.6 - 22) = 2.6 oC = 2.6 oK

Q = 4.18"\\times"2.6"\\times"100 = 1086.8 J = 1.09 kJ

Answer: Q = 1.09 kJ.


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