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An electron tube was sealed off during m...

An electron tube was sealed off during manufacture at a pressure of `1.2xx10^(-7)` mm of mercury at `27^(@)C.` Its volume is 100 `cm^(3)`. The number of molecules that remain in the tube is

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`3.814xx10^(11)`
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Knowledge Check

  • An electronic vaccum tube was sealed off during an experiment at a pressure of 8.2xx10^(-10) atm at 27^(@)C . The volume of the tube was 30 dm^(3) . The number of gas molecules remaining in the tube are

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    C
    `24.6xx10^(6)`
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