The body can release 20,000 J of energy for each liter of oxygen consumed. How much oxygen must be consumed by the body to release the energy present in a typical 2000 Cal diet?
To determine how much oxygen must be consumed by the body to release the energy present in a 2000 Cal diet, we need to convert the units and use the given information.
Let's start by converting 2000 Calories to Joules. Each Calorie (kcal) is equivalent to 4184 Joules.
Thus, the energy in a 2000 Cal diet is:
2000 Cal x 4184 J/Cal = 8,368,000 J
Now, we know that the body can release 20,000 J of energy for each liter of oxygen consumed.
To find out how much oxygen is needed, we need to divide the total energy (8,368,000 J) by the amount of energy released per liter of oxygen (20,000 J/l):
8,368,000 J ÷ 20,000 J/l = 418.4 liters
Therefore, in order to release the energy present in a typical 2000 Cal diet, the body must consume approximately 418.4 liters of oxygen.