How much amount of `CO_(2)` is removed by lungs per day?

Answer

To determine the amount of CO2 removed by the lungs per day, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Tidal Volume**:
- The tidal volume is the amount of air (and thus CO2) that is inhaled or exhaled in a single breath. According to the transcript, this is approximately 500 ml per minute.

2. **Calculate CO2 Removal Per Minute**:
- Since the amount of CO2 removed is equal to the amount of air inhaled, we can state that 500 ml of CO2 is removed per minute.

3. **Calculate CO2 Removal Per Day**:
- To find out how much CO2 is removed in a day, we need to multiply the amount removed per minute by the number of minutes in a day.
- There are 60 minutes in an hour and 24 hours in a day, so:
\[ \text{Total minutes in a day} = 60 \text{ minutes/hour} \times 24 \text{ hours/day} = 1440 \text{ minutes/day} \]

4. **Final Calculation**:
- Now, multiply the CO2 removed per minute by the total minutes in a day:
\[ \text{Total CO2 removed per day} = 500 \text{ ml/min} \times 1440 \text{ min/day} = 720,000 \text{ ml/day} \]
- This can also be expressed in liters:
\[ 720,000 \text{ ml} = 720 \text{ liters} \]

### Conclusion:
The amount of CO2 removed by the lungs per day is approximately **720 liters**.

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