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Topic: volume: Ar is added to light bulbs to reduce the vaporization of tungsten  (Read 3835 times)

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chandrablue

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volume: Ar is added to light bulbs to reduce the vaporization of tungsten
« on: April 24, 2005, 10:54:39 AM »
A small quanity of the inhert gas AR is added to light bulbs  to reduce the vaporization of tungsten (W) atoms from the solid filament. What volume of Argon at a pressure of 760 mmHg is needed to fill a 0.21-L light bulb at a pressure of 1.30 mmHg? Assume the gas temp remains constant.
« Last Edit: April 24, 2005, 04:17:58 PM by Mitch »
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Offline xiankai

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Re:volume: Ar is added to light bulbs to reduce the vaporization of tungsten
« Reply #1 on: April 25, 2005, 04:55:02 AM »
not related to question... but i'll just like to inform u its not the vaporization of tungsten atoms... but the oxidation of them :p
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Offline jdurg

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Re:volume: Ar is added to light bulbs to reduce the vaporization of tungsten
« Reply #2 on: April 25, 2005, 01:31:03 PM »
Please show us that you have attempted to answer this question on your own, othewise we will have to delete the thread as we do not answer homework questions for people.  We are here to help people in the field of chemistry, not do their homework.
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Offline Donaldson Tan

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Re:volume: Ar is added to light bulbs to reduce the vaporization of tungsten
« Reply #3 on: April 26, 2005, 06:40:02 PM »
use Boyle's Law where P1V1 = P2V2 at constant T
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