An expensive vacuum system can achieve a pressure as low as 1 × 10-N/m² at 20 °C. How many atoms are there in a cubic centimeter at this pressure and temperature? The Boltzman's constant k= 1.38 x 10 -23 m²kg/(s²K) Number of atoms:

An expensive vacuum system can achieve a pressure as low as 1 × 10-N/m² at 20 °C. How many atoms are there in a cubic centimeter at this pressure and temperature? The Boltzman's constant k= 1.38 x 10 -23 m²kg/(s²K) Number of atoms:

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter13: Temperature, Kinetic Theory, And The Gas Laws

Section: Chapter Questions

Problem 38PE: (a) In the deep space between galaxies, me density of atoms is as low as 106atoms/m3, and me...

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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

1. An expensive vacuum system can achieve a pressure as low as 1 x 10-7N/m² at 20 °C. How many
atoms are there in a cubic centimeter at this pressure and temperature? The Boltzman's constant
k= 1.38 x 10 m²kg/(s²K)
-23
Number of atoms:

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