Explain why grease on clothing will not come out with cold water.
Thanks in advance!
2007-11-15 13:31:06 · 4 answers · asked by Gabbs 3 in Science & Mathematics ➔ Biology
Grease is fat and is not soluble in water. So it does not come out with cold water. Hot soapy water may get it out.
2007-11-15 13:35:24 · answer #1 · answered by OKIM IM 7 · 2⤊ 0⤋
Grease is liquid when hot and moderately warm. Grease solidifies when cool. Say some grease from a Hamburger drips on your shirt at lunchtime. You have no time to go home and rinse the spot with hot water and then use Dawn Dishwashing Soap to wash the spot and rinse it out with hot water at home before you go back to school. The grease spot cools in the shirt's fibres, and by the time you get home, the grease spot has cooled (after soaking into the fabric's fibres) and VOILA! your shirt has a grease stain.
Cold water is cool and assists the grease to remain in it's solid, cool state. In order to remove the spot, HOT water must be poured through the spot. Since Dawn removes grease from dishes (it is the best), it will cut the grease in the shirt's fibres.
I hope this explains it to your complete satisfaction!
You are welcome.
Good luck and may God bless you.
2007-11-15 21:42:56 · answer #2 · answered by kathleen m 5 · 0⤊ 0⤋
Fats repel water because of their difference in densities, and the colder the water, the greater the difference in density.
2007-11-15 21:34:46 · answer #3 · answered by Tros 2 · 1⤊ 1⤋
it is oily and sticky
2007-11-16 09:46:07 · answer #4 · answered by divya.a 1 · 0⤊ 0⤋