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To calculate the amount of ice needed to bring down a patient's fever, we first determine the heat energy required to lower the body temperature from 40°C to 39°C. This requires approximately 1 kcal (or 4184 joules) for each kg of body mass for a temperature change of 1°C. Assuming an average body mass of 70 kg, the total energy required is around 70 kcal (or 292,000 joules). Since the melting of ice at 0°C requires approximately 334 joules per gram, about 875 grams of ice would need to be melted to absorb this amount of heat.

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2d ago

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