Question

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). If you breathe 17 times a minute (at rest), taking in and exhaling 0.50 L of air with each breath, what volume of air do you breathe each day?

Answer 1

Volume of oxygen we breathe each day = 2570.4 L/day

Step-by-step explanation:

Given that :

volume of air used per breath = 0.5 L

Frequency of breath = 17 times per minute

We know that the percentage volume of air in the atmosphere is approximately = 21%

Hence; the volume of air breathed =
`(volume \ of \ air breathed)/(breath ) *(17 \ breaths)/( minute ) * (60 \ minutes )/(hour)*(24 \ hour)/(day)`

the volume of air breathed =
`(0.5 \ L )/(breath ) *(17 \ breaths)/( minute ) * (60 \ minutes )/(hour)*(24 \ hour)/(day)`

the volume of air breathed = 12,240 L/day

To calculate the volume of oxygen breathed per day; we have:

Volume of oxygen breathed =
`volume \ of \ air \ breathed * (percentage \ of \ air )/(100)`

Volume of oxygen breathed =
`12240* (21 )/(100)`

Volume of oxygen breathed = 2570.4 L/day

Answer 2

The volume of the air breath per day is =12240 L day ^ -1 and he volume of oxygen breathe each day is= 2570.4 L

Step-by-step explanation:

Complete question: The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). If you breathe 17 times a minute (at rest), taking in and exhaling 0.50 L of air with each breath, what volume of air do you breathe each day? Air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Solution

Given that,

The volume of the air with each breath = 0.50L

The frequency of breath is = 17 times per minute

the next step is to calculate the volume of the air breath per day

The volume of the breathed air = volume of air breathed/ breath * 17 breaths/min * 60 minutes / per hour * 24 hours/ per day

= 0.50L/ breath * 17 breath /min * 60 minutes / per hour * 24 hours/ per day

= 12240 L day ^ -1

The next step is to calculate the oxygen breathed per day:

The volume of oxygen breathed = volume of air breathed * percent oxygen in air/100

= 12240 L day ^ -1 * 21 /100

= 2570.4 L day ^ -1

Therefore for each day, the volume of oxygen breathe is 2570.4 L