Energy of vaporization.

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Jake
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Energy of vaporization.

Post by Jake »

Would anyone know the value of the energy of vaporization for silicon dioxide (SiOsub2) or how to find it?
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Dave
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Re: Energy of vaporization.

Post by Dave »

A fair amount of googling yielded the heat of vaporization of Silicon Monoxide at 72.5 kcal/mole*

http://www3.interscience.wiley.com/jour ... 5/abstract

Another round of googling indicates a possible answer of 383.3 kJ/mol for Silcon Dioxide, but I can't find that answer on the resulting webpage.
http://www.google.com/search?q=%22silic ... 2&start=10 see link #2

Of course, if you want the correct answer, boil a known quantity of pure sand in a calorimeter a couple-dozen times. :wink:
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Jake
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Re: Energy of vaporization.

Post by Jake »

Yeah, the internet isn't to helpful on heat of vaporization for solids. I would even be happy with a formula, but the only ones I've found are liquid related.
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Jake
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Re: Energy of vaporization.

Post by Jake »

Also, the 383.5 is for regular silicon.
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Surlethe
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Re: Energy of vaporization.

Post by Surlethe »

Jake wrote:Also, the 383.5 is for regular silicon.
One: ALWAYS use units.

Two: go to your local library and check out the CRC handbook. We are not your personal informants.

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