Question

Under normal conditions the human heart converts about 13.3 J of chemical energy per second into...

Under normal conditions the human heart converts about 13.3 J of chemical energy per second into 1.33 W of mechanical power as it pumps blood throughout the body.

HINT

(a)

Determine the number of Calories required to power the heart for one day, given that 1 Calorie equals 4186 J.

Cal

(b)

Metabolizing 1 kg of fat can release about 9000 Calories of energy. What mass of metabolized fat (in kg) would power the heart for one day?

kg

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Answer #1

In this question we have to find the chemical energy used by heart to pump blood in one day.

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