Modern Physics> An electric bulb of volume 250 cm^3 was s...

An electric bulb of volume 250 cm^3 was sealed off during manufacture at a pressure of 10^-3 mm Hg at a 27 degree celsius,find the number of molecules in it.(Avogadro number=6*10^23)

jyothi , 11 Years ago

Grade 11

2 Answers

Arun Kumar

$760mm=1atm \\=>10^{-3}mm=10^{-3}/760atm$

$V=.250L$

$T=300K$

Now apply PV=nRT

$R=0.0821 liter�atm/mol�K$

Get n and multiply with Avogadro's Constant.

Arun Kumar

IIT Delhi

Askiitians Faculty

Last Activity: 11 Years ago

Akshita

PV=k_B×N×T where we have to find N that is number of molecules. Given V=250 cm3 , P=10^{-3 mm Hg ,}T= 27°C

Last Activity: 7 Years ago

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Modern Physics> An electric bulb of volume 250 cm^3 was s...

An electric bulb of volume 250 cm^3 was sealed off during manufacture at a pressure of 10^-3 mm Hg at a 27 degree celsius,find the number of molecules in it.(Avogadro number=6*10^23)

jyothi , 11 Years ago

Arun Kumar

Akshita

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