# Talk:Leidenfrost effect

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very interesting, congrats to the author

Can this term be applied to a vapor layer protecting a solid as well? Dry ice pieces will skitter across floors, and can be held in a candle flame without quickly subliming. --Pyrochem 00:48, 22 January 2007 (UTC)

Yes it can. The theory is the same. A protective layer of gas surrounds the solid and protects it from the heat. Goldy496 17:39, 31 October 2007 (UTC)

## Temperature of Leidenfrost Point

The temperature at which the Leidenfrost effect occurs depends fairly strongly on a number of properties of both the surface and the liquid. This may include (but is not limited to) surface roughness, contamination in the liquid, and the amount of wetting between the surface and the non-suspended liquid.

A mathematical model which allows one to predict the temperature of the Leidenfrost point for a given system is quite complicated, but Bernardin and Mudawar attempt to formulate a model in "A Cavity Activation and Bubble Growth Model of the Leidenfrost Point," Transactions of the ASME, (Vol. 124, Oct. 2002).

The claim that the Leidenfrost point of a water drop on a frying pan occurs near 220 C is misleading and I am editing the article accordingly.

Please justify that; I've seen a number of sources that indicate that 220 C is accurate. This is not an impeccable source, but you are encouraged to provide a better one to support the figure of 160 C. To be fair, I have not yet read the cited article. If you have access to it, please post an excerpt with more detailed information, or summarize it briefly. Tenebrous (talk) 17:43, 20 February 2008 (UTC)