Question

сколько углекислого газа выделит ученик за урок (45 мин), если его дыхательный объем составляет 500^3см?

Answer 1

Ответ:

0.45 м.куб

Объяснение:

частота дыхания школьника в норме примерно 20 раз в минуту. тогда за 45 минут урока он выдохнет 45*20=900 раз. при этом каждый раз он выделит 500 см.куб воздуха. в итоге 900*500=450000 см. куб =

1 м. куб= 1000000 см.куб

450000 см.куб=0.45 м.куб

Answer 2

Calculating Carbon Dioxide Emission

To calculate the amount of carbon dioxide a student would exhale during a 45-minute lesson, we can use the following formula:

Carbon Dioxide Emission (in cm^3) = Respiratory Rate (breaths per minute) × Tidal Volume (cm^3)

Given that the student's tidal volume is 500 cm^3, we need to find the respiratory rate to calculate the carbon dioxide emission.

Finding the Respiratory Rate

The average respiratory rate for an adult at rest is about 12 to 20 breaths per minute However, during physical activity or stress, this rate can increase.

Calculation

Assuming a moderate respiratory rate of 15 breaths per minute, we can calculate the carbon dioxide emission:

Carbon Dioxide Emission = 15 breaths/minute × 500 cm^3 = 7500 cm^3

Therefore, if the student's respiratory rate is 15 breaths per minute and their tidal volume is 500 cm^3, they would exhale approximately 7500 cm^3 of carbon dioxide during a 45-minute lesson.