2007-06-07 05:44:06 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
any substance which can make a room cooler than the outsude temperature.the cooling effect shld act over an are of atleast 2-4square metres.it should not also be too cold.
2007-06-07 05:55:49 · update #1
Water?
When I am in an area that has a mist of water spraying, I get cool.
2007-06-07 05:47:09 · answer #1 · answered by DanE 7 · 0⤊ 0⤋
No. What you are describing would require a material through which heat travels in only one direction, and then only until a desired temperature differential is reached. There are no such materials which do these things in their simple material form. A mechanism and energy must be provided to make heat travel from cooler to hotter.
2007-06-07 13:13:18 · answer #2 · answered by PoppaJ 5 · 0⤊ 0⤋
Any substance which reacts or absorbs materials present in the atmosphere and the process is endothermic.
2007-06-07 12:50:16 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋
Any which readily reacts with the environment and the reaction is endothermic.
2007-06-07 13:00:54 · answer #4 · answered by Anonymous · 0⤊ 0⤋
More info please. Are you talking about refrigerants? I'm not sure if you're looking for passive cooling effects or dynamic. More info please. Give us a more developed scenario.
2007-06-07 12:48:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋