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Malia Shitabata 1F
Posts: 127
Joined: Sat Aug 17, 2019 12:17 am


Postby Malia Shitabata 1F » Sat Feb 01, 2020 11:10 pm

Calculate the heat that must be supplied to a copper kettle of mass 500.0 g containing 400.0 g of water to raise its temperature from 22.0 ºC to the boiling point of water, 100.0 ºC. What percentage of the heat is used to raise the temperature of the water?

I calculated the initial heat that needs to be supplied, but how do I calculate the percentage of heat used?

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: 4C.9

Postby Julie Park 1G » Sat Feb 01, 2020 11:25 pm

Take the heat change (to raise the temperature of water), which you found in part a, and divide it by the sum of the heat changes (for copper and water), which is your final answer from part a.

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