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Jakob Littel

Feb 20, 2025

A rapidly spinning paddle wheel raises the temperature of 200mL of water …?

A rapidly spinning paddle wheel raises the temperature of 200mL of water from 21 degrees Celsius to 25 degrees. How much a) work is done and b) heat is transferred in this process?
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Hermina Ferry

Feb 20, 2025

the work is done by the friction force. All the work will go to increase the internal energy of the water.Q=mC∆θ=3360 JWhere C=4200J, m=1000×200×10^-6=0.2 kgThere are ''No'' heat transfer in the process.... Show More
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H
Hermina Ferry

Feb 20, 2025

specific heat of water is 4.186 kJ/kgC200 mL = 0.2 kgE = 4.186 kJ/kgC x 0.2 kg x (25–21)C = 3.35 kJwhich is the work done, and the heat (thermal energy) transferred... Show More
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