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BIO Treatment for a Stroke. One suggested treatment for a
Chapter 17, Problem 40E(choose chapter or problem)
BIO Treatment for a Stroke. One suggested treatment for a person who has suffered a stroke is immersion in an ice-water bath at 0°C to lower the body temperature, which prevents damage to the brain. In one set of tests, patients were cooled until their internal temperature reached 32.0°C. To treat a 70.0-kg patient, what is the minimum amount of ice (at 0°C) you need in the bath so that its temperature remains at 0°C? The specific heat of the human body is \(3480 \mathrm{~J} / \mathrm{kg} \cdot \mathrm{C}^{\circ}\), and recall that normal body temperature is 37.0°C.
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QUESTION:
BIO Treatment for a Stroke. One suggested treatment for a person who has suffered a stroke is immersion in an ice-water bath at 0°C to lower the body temperature, which prevents damage to the brain. In one set of tests, patients were cooled until their internal temperature reached 32.0°C. To treat a 70.0-kg patient, what is the minimum amount of ice (at 0°C) you need in the bath so that its temperature remains at 0°C? The specific heat of the human body is \(3480 \mathrm{~J} / \mathrm{kg} \cdot \mathrm{C}^{\circ}\), and recall that normal body temperature is 37.0°C.
ANSWER:Solution 40E Step 1 of 3: The heat that comes out of the person goes into the ice water bath and causes some of the ice to melt. Normal body temperature is 98.6 F =37 C 0 0 T = 5 C 0 The ice water bath stays at 0 C .A mass m ice melts and Q ice= mL f L =334× 10 J/kg (water) f