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$\bullet$ Modern vacuum pumps make it easy to attain pressures on the order of $10^{-13}$ atm in the laboratory. At a pressure of $9.00 \times 10^{-14}$ atm and an ordinary temperature of $300 \mathrm{K},$ how many molecules are present in 1.00 $\mathrm{cm}^{3}$ of gas?

$2.2 \times 10^{6}$ molecules.

Physics 101 Mechanics

Chapter 15

Thermal Properties of Matter

Temperature and Heat

The First Law of Thermodynamics

The Second Law of Thermodynamics

Cornell University

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University of Sheffield

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Lectures

04:16

In mathematics, a proof is…

04:48

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08:15

Modern vacuum pumps make i…

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05:31

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Even the best vacuum pumps…

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The best laboratory vacuum…

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In an ultrahigh vacuum sys…

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01:27

Current vacuum technology …

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In state-of-the-art vacuum…

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(a) An ideal gas occupies …

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here. We want to complete the numeral monitors present in one centimeter Cube off a guess. There. 300 Calvin. And at the pressure off. Nine times 10 to the power minus 14 atmosphere. So we have pressure here. Equal toe nine, multiply 10 to the power minus 14 Atmosphere. So what did you call to nine month blow? Attended a power minus 14. Multiply one 01 Truth about the room. Baskin. So here we have William equal toe once. It to me. Derek, you vertical tow. One month supply tended the power minus six meter Q. So impressive here is gender, Kelvin. So nobody using the areal guest speakers. And we have BB physical too. And times care times t. So from here we have the relation for em equal to P. Reno Bond. Katie. Nobody putting different values here. Pressure is nine. Multiply 10 to the power minus 14. Multiply 101 treatable Jiro Paschal. Multiply Volume is one multiplied 10 to the power minus six meters. Q upon. Okay, your case boards mets constantly having the will you off one by a tree and multiply into the power minus 23 Joel molecule, but kill me. I want to play some pretty it is see 100. Kill me. So we get number of molecules prison equal to to point to multiply 10 to the power six molecules, their sound said of the problem.

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