Certain low melting substances seem to disappear before melting is observed. What is the explanation?

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Certain low melting substances seem to disappear before melting is observed. What is the explanation?

2006-09-10 05:30:52 · 2 answers · asked by Emerson 5 in Science & Mathematics ➔ Chemistry

2 answers

It is called sublimation, where a substance is converted to a gas instead of going through a liquid phase. An example of this is dry ice (frozen carbon dioxide) which converts back to a gas when heated.

2006-09-10 05:34:34 · answer #1 · answered by Modest intellect 4 · 0⤊ 0⤋

yeah, what the last guy said. He did a better job than I would.

2006-09-10 12:37:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋