1) Is the following sentence true or false? A gas absorbs energy as it changes to a liquid.
2) For the process boiling and evaporation, what is the phase change, where it occurs, and the temperature.
Thank you all!
2007-09-27 10:15:35 · 3 answers · asked by lover2 1 in Science & Mathematics ➔ Chemistry
1) No. It gives up energy.
2)Boiling, evaporation--liquid phase to gaseous phase.
--It occurs at the boiling point (that is the same or equal to condensation point).
temperature where it occurs--Boiling point (boiling point is a temperature)
2007-09-27 10:27:50 · answer #1 · answered by kent☼wn 3 · 0⤊ 0⤋
A gas has a higher energy level than the corresponding liquid.
So when a gas changes to a liquid, the additional energy is released.
You second question makes no sense. Boiling / evaporation is a phase change as a substance changes from liquid to gas. The temperature depends on the substance. For example, at standard pressure, water boils at 100 C.
2007-09-27 10:20:04 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋
WHERES THE 3RD QUESTION???????
2007-09-27 10:23:52 · answer #3 · answered by Steph 5 · 1⤊ 0⤋