Home Physics Thermometry, Thermal Expansion and Calorimetry Mix During illness an 80 kg man ran a fever of 1…
Physics Thermometry, Thermal Expansion and Calorimetry Mix MCQ (Single Correct)

During illness an 80 kg man ran a fever of 102.2°F instead of normal body temperature of 98.6°F. Assuming that human body is mostly water, how much heat is required to raise his temperature by that amount

A
100 kcal
B
160 kcal
C
50 kcal
D
92 kcal

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Text Solution

Verified by Experts
The correct answer is:
B

Since 102.2°F → → 39°C and 98.6°F → → 39°C

Hence Δ Δ Q = m. s. Δ Δ Q = 80 × 1000 × (39 – 37)

= 16 × 10 4 cal = 160 kcal.

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