aayushraut078
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An electron vacuum tube was sealed off in my experiment at a pressure of 8*10^-10 atm. The volume of the tube is 30 dm^3. Find the number of molecules in the tube.​

Respuesta :

Answer:

[tex]6\times10^{14}[/tex]

Explanation:

[tex]\mathrm{P=8\times10^{-10}}\\\\\mathrm{V=30\:dm^3=30\:L}[/tex]

[tex]\mathrm{pv=nRT}\\\\\mathrm{n=\frac{PV}{RT}=\frac{8\times10^{-10}\times30}{0.0021\times30}}[/tex]

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