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A Carnot heat engine uses a hot reservoir consisting of a large amount of boiling water and a cold reservoir consisting of a large tub of ice and water. In five minutes of operation of the engine, the heat rejected by the engine melts 0.0400 kg of ice.During this time, how much work W is nperformed by the engine? Answer in Joules.

Respuesta :

Answer:

4893.7 J

Explanation:

TH = 100°C = 373 K

Tc = 0°C = 273 K

Heat rejected is used to melt ice

So, Qc = mass of ice x latent heat of fusion

Qc = 0.04 x 334 x 1000 = 13360 J

So, [tex]\frac{T_{H}}{T_{c}}=\frac{Q_{H}}{Q_{c}}[/tex]

[tex]Q_{H}=\frac{13360\times 373}{273}[/tex]

QH = 18253.7 J

Work = QH- Qc = 18253.7 - 13360

W = 4893.7 J

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