Oxygen diffuses from the surface of insects to the interior through tiny tubes called tracheae. An average trachea is about 2 mm long and has cross-sectional area of 2 x 10 m². ▾ Part A ▾ What is the molar concentration of oxygen in the air (assume 21% is oxygen) at 16 °C? Express your answer to two significant figures and include the appropriate units. n/V- Value Submit Part B Submit for for Party do for Part redo foart A reor Part A keyboard shortcuts for Part A help for Part A Part C Assuming the concentration of oxygen inside is half what it is outside in the atmosphere calculate the diffusion rate J. The diffusion constant is 1.8 x 10 m²/s Express your answer to two significant figures and include the appropriate units. for Ppt for Parte do for Part redo fort Bror Part B keyboard shortcuts for Part B help for Part B J- Value Units Request Answer Submit Request Answer Units Estimate the average time for a molecule to diffuse in Express your answer to two significant figures and include the appropriate units. for Rast C for Part Cdo for Part redo fort Crer Part C keyboard shortcuts for Part C help fr Part C t- Value Units Request Answer

Oxygen diffuses from the surface of insects to the interior through tiny tubes called tracheae. An average trachea is about 2 mm long and has cross-sectional area of 2 x 10 m². ▾ Part A ▾ What is the molar concentration of oxygen in the air (assume 21% is oxygen) at 16 °C? Express your answer to two significant figures and include the appropriate units. n/V- Value Submit Part B Submit for for Party do for Part redo foart A reor Part A keyboard shortcuts for Part A help for Part A Part C Assuming the concentration of oxygen inside is half what it is outside in the atmosphere calculate the diffusion rate J. The diffusion constant is 1.8 x 10 m²/s Express your answer to two significant figures and include the appropriate units. for Ppt for Parte do for Part redo fort Bror Part B keyboard shortcuts for Part B help for Part B J- Value Units Request Answer Submit Request Answer Units Estimate the average time for a molecule to diffuse in Express your answer to two significant figures and include the appropriate units. for Rast C for Part Cdo for Part redo fort Crer Part C keyboard shortcuts for Part C help fr Part C t- Value Units Request Answer

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Maxwell speed distribution

Maxwell-Boltzmann distribution or commonly known as Maxwell speed distribution, explains the division of the energy levels of the molecules of an ideal gas on the basis of the statistical theory. In 1859, Scottish physicist James Clerk Maxwell established the context for the distribution of molecular velocities for random molecules moving in a closed environment. This theory was generalized in 1871 by German physicist Ludwig Boltzmann. He improvised the theory to express the distribution of energy levels among different molecules.

Question

Oxygen diffuses from the surface of insects to the interior through tiny tubes called tracheae. An average trachea is about 2 mm long and has cross-sectional area of
2 x 10-⁹ m².
Part A
What is the molar concentration of oxygen in the air (assume 21% is oxygen) at 16 °C?
Express your answer to two significant figures and include the appropriate units.
n/V =
Submit
Part B
J =
Submit
Part C
Assuming the concentration of oxygen inside is half what it is outside in the atmosphere calculate the diffusion rate J. The diffusion constant is 1.8 x 10-5m²/s.
Express your answer to two significant figures and include the appropriate units.
for Part B for Part B do for Part & redo for Part B reeDor Part B keyboard shortcuts for Part B help for Part B
Value
for Part A for Party do for Part redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A
t =
Value
Request Answer
Submit
Request Answer
Estimate the average time for a molecule to diffuse in.
Express your answer to two significant figures and include the appropriate units.
Units
Value
for Part C for Part Cdo for Partn redo for eart C reset or Part C keyboard shortcuts for Part C help for Part C
Units
Request Answer
Units

Consider an ideal gas at 27.0 degrees Celsius and 1.00 atmosphere pressure. Imagine the molecules to be uniformly spaced, with each molecule at the center of a
small cube.
Part A
What is the length L of an edge of each small cube if adjacent cubes touch but don't overlap?
Express your answer numerically in meters.
► View Available Hint(s)
L =
for Parval for PartAddo for Part
Submit
redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A
m

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