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

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter10: Thermal Physics

Section: Chapter Questions

Problem 2P: The pressure in a constant-volume gas thermometer is 0.700 atm at 1.00 102C and 0.512 atm at 0C....

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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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