2007-09-15 10:43:52 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I know there is no such word as "dis."
There just wasn't enough room to right "this."
-.-
2007-09-15 10:52:21 · update #1
it means that the mothballs are changing straight from solid to gas, you cant observe its liquid state. when the mothballs sublimate, the gas it changes to is realeased into the air which circulates around killing moths.
2007-09-15 10:49:02 · answer #1 · answered by T 4 · 1⤊ 0⤋
Ashley, there is no such word as "dis".
Some substances, at room temperature and normal pressure, will go from the solid state directly to the vapor state without melting. Dichlorobenzene, which is a weak pesticide, is one of these. The vapor can diffuse as a gas throughout the fabric it protects.
2007-09-15 17:51:40 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
moth balls go from solid to gas, without ever going through the liquid phase. For example, ice is sold, then melts (into liquid water) then evaporates into gas. So it has a liquid phase. Moth balls skip the liquid phase. Just like dry ice. Dry ice will start as a solid, and then slowly turn to gas, without ever being liquid.
I dont know how mothballs function though. I just know they kill moths somehow. That's a seperate question from the sublime question :)
2007-09-15 17:54:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋
http://www.newton.dep.anl.gov/askasci/chem00/chem00283.htm
2007-09-15 17:48:38 · answer #4 · answered by Anonymous · 0⤊ 1⤋