Question

How many calories of heat would be required to raise the temperature of a 45-kg person by 2
0C?(specific heat of human body = 0.83 kcal/kg. 0C)

Answer 1

To find the amount of heat required to raise the temperature of a 45-kg person by 20°C, we can use the formula:
Q = mcΔT
Where:
Q = heat added to the person (in calories)
m = mass of the person (in kg)
c = specific heat of the person (in kcal/kg°C)
ΔT = change in temperature (in °C)
Given:
m = 45 kg
c = 0.83 kcal/kg°C
ΔT = 20°C
Plugging in the values:
Q = (45 kg) * (0.83 kcal/kg°C) * 20°C
Q = 747 kcal
Therefore, 747 calories of heat would be required to raise the temperature of a 45-kg person by 20°C.