How long on average would it take an oxygen gas molecule (02) to diffuse a distance...

Question

Question

How long on average would it take an oxygen gas molecule (02) to diffuse a distance of 15.0 mm in air? Hint: See Example 12.24

Answer 1

Answer #1

Apply

time = x² / (2D)

where

D = diffusion constant = 10^-9 m²/s

x = distance = 15 mm = 15 *10^-3 m

then, substitute

t = (15 *10^-3)² / 2 * 10^-9

= 112.5 * 10^-3 sec

= 3.125 * 10 ^-5 hours

Answer 2

Similar Homework Help Questions

The diffusion constant of oxygen through water is an important limiting factor in the size of...

The diffusion constant of oxygen through water is an important limiting factor in the size of organisms that do not have active transport mechanisms to circulate oxygen through their systems. The diffusion constant or oxygen through water is 8 x 10-10 m2s-1. one average, how long does it take for an oxygen molecule to diffuse 1 mm through water?
How would we estimate the average distance between molecules at STP? (e) Chemists often use the...

How would we estimate the average distance between molecules at STP? (e) Chemists often use the shorthand notation "STP' for standard temperature and pres- sure, or T = 273 K and P = 1.0 bar. What is the number density of an ideal gas at STP, nstp? Estimate the average distance between molecules at STP, in nanometers, and compare this to the size of a typical diatomic molecule (e.g., N2 or 02) of ~ 400 pm (1 pm = 10-12m).
How can you see a molecule of air (oxygen) if is invisible and no one can...

How can you see a molecule of air (oxygen) if is invisible and no one can grave it?

Question 7 1 pts Compared with oxygen, at what rate does CO2 diffuse across the alveolar-capillary...

Question 7 1 pts Compared with oxygen, at what rate does CO2 diffuse across the alveolar-capillary membrane? O CO2 diffuses 20 times faster than O2 O CO2 diffuses 44 times slower than 02 O CO2 diffuses 20 times slower than 02 O CO2 diffuses 44 times faster than 02 Question 8 1 pts What is the term for the situation when the transfer of gas across the alveolar wall is dependent upon the blood flow past the alveolus? O perfusion...
How long does it take Rick to cover the distance D? Express the time taken by...

How long does it take Rick to cover the distance D? Express the time taken by Rick in terms of vr, Uw, and D Review Tim and Rick both can run at speed vr and walk at speed w with vr >vw They set off together on a journey of distance D. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. View Available Hint(s) Correct Part B...
How long does it take Rick to cover the distance D? Express the time taken by...

How long does it take Rick to cover the distance D? Express the time taken by Rick in terms of vr, Uw, and D Review Tim and Rick both can run at speed vr and walk at speed w with vr >vw They set off together on a journey of distance D. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. View Available Hint(s) Correct Part B...

When normal breathing, how long would it take for a someone to breath 1/2 of their alveolar air before it is exchanged w...

When normal breathing, how long would it take for a someone to breath 1/2 of their alveolar air before it is exchanged with air? During normal respiration (assume average values for all pertinent parameters), approximately how long must a person breathe before half of their alveolar air is exchanged with atmospheric air?
Problem 4: The mean free path of a gas, 2, is defined as the average distance...

Problem 4: The mean free path of a gas, 2, is defined as the average distance traveled by molecules between collisions. A commonly used formula for estimating 2 of an ideal gas is: where џ is the viscosity of the gas, is the density of air. T is the temperature in Kelvin, and C is an experimentally determined constant. Calculate the mean free path of air (in units of nm) at 25 °C and standard atmospheric pressure if the viscosity...
How many mL of pure oxygen gas would theoretically be consumed in this reaction? Given the...

How many mL of pure oxygen gas would theoretically be consumed in this reaction? Given the stoichioner ot the reaction, ana thar 1 mole af gas at Standara temperatuてand pressure (2 second latm) occapies 22.4,how many m ot Pure Gyáen as voouneoreicauy be cansumed inthis rcaction c H 3 CH3 CH3 cuc↓ shone o14 OH OH + 02

7. How many mL of water is produced when 4.7L of hydrogen gas reacts with oxygen?...

7. How many mL of water is produced when 4.7L of hydrogen gas reacts with oxygen? Hint: Balance the equation! H2(g)+ 02(g)H20(g)