I'm learning E. Science right now and it's not one of my best subjects. Help please.
2007-03-25 09:47:00 · 4 answers · asked by StarStruck 2 in Science & Mathematics ➔ Other - Science
The heat required to go from solid to liquid (melt something) is the heat of fusion, the heat to go from liquid to vapor (boil away) is heat of vaporization.
2007-03-25 13:47:05 · answer #1 · answered by Pretzels 5 · 0⤊ 0⤋
If you are talking about chemistry and the phases are liquid, solid, and gas. I believe that "heat of vaporization" is one of the phrases. Google that. That would be the amount of energy required to make a quantity of water (for example) into steam at the same temperature (well, 100 - smidge to 100 + smidge). Look more closely at this and you may discover how it is that steam heating radiators work. It is sneaky.
2007-03-25 11:13:49 · answer #2 · answered by ZORCH 6 · 0⤊ 0⤋
The most precise term is the standard enthalpy change of vaporization. It varies with temperature, ranging from 45 kiloJoules per mole at 0 degrees C to around 40 at 100 degrees C, down to 2 at 374 degrees C.
The enthalpy change of fusion is 333.6 Joules/gram.
The enthalpy change of sublimation (solid directly to gas) is 2838 Joules/gram.
Other names are sometimes used, such as (latent) heat of fusion etc.
2007-03-25 19:20:42 · answer #3 · answered by Frank N 7 · 0⤊ 0⤋
momentum or suspension
2007-03-25 09:55:22 · answer #4 · answered by Sandrew 2 · 0⤊ 1⤋