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∙ 15y ago
XiaomaYamadachi
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Why do wet clothes dry faster when you spread them out?
The more you unfold/flatten them out, or hang them up, the more you expose them to the air, allowing the water to evaporate more quickly (drying them).
How do clothes shrink?
Clothes shrink when the fibers get wet they shrivel up. Hot water will leave the fibers wet making you clothes shrink.
Is drying the washing reversible?
Sure. Just chuck it ion the water and it'll get wet again.
Why are wet clothes hung on a washing line to dry?
To DRY
An example of a physical change and a chemical change?
Melting of a solid to a liquid, or evaporation of a liquid to a gas. The physical state is changed but it is the same substance (though some substances do breakdown under heating, then it becomes chemical)
Which is not a physical change drying wet clothes cutting snowflakes from paper or lighting a match?
Lighting a match.
Why is drying wet clothes a physical change?
The water is merely going from a liquid state to a gas state. Its chemical identity remains the same.
Is drying of clothes physical or chemical?
Drying clothes would be a physical change. The clothes themselves do not change either chemically or physically, so one needs to consider the removal or liquid water from the clothes. This is simply a phase change of H2O liquid to H2O vapor (steam). It is still H2O either way, so there is no chemical change. It would be a physical change.
What processes is not a physical change drying wet clothes cutting snowflakes out of paper light a match from a matchbook?
Ignition of a match is a chemical process.
Is a wet road drying in the wind a physical or chemical change?
Physical change. The water on the road evaporates, which is a physical change.
What one what processes is not a physical change drying wet clothes cutting snowflakes out of paper lighting a match from a matchbook?
The answer is lighting a match box because when doing so, the match goes into flames and flammability is a chemical change. When cutting a snowflake, the substances do not change, neither does it change when drying wet clothes. The person earlier said drying wet clothes, but he/she is wrong because when you dry wet clothes, the water goes through a physical change called evaporation, which is NOT a chemical change. I hope this helps. Good luck on your chapter assessments(I'm doing mine too). :)
Is blow drying your hair an example of a chemical or physical change?
It's a physical change because when blow drying your hair, no new substance is made it just changed its form/appearance; from wet to dry. Therefore, it's a physical change.
Is drying of fish is a chemical change?
No. Physical cause it hasn't changed its just gone from wet to dry :-)
What processes is not a physical change drying wet clothescutting snowflakes out of paper lighting a match from a matchbox?
lighting a match from a matchbox is a chemical change.
Which method would you use to separate water from wet clothes?
drying them
What is drying efficiency?
The coefficient of drying is a number about the utility of a dryer. A simple example : You have dirty clothes dry, and you wash them. So now, you have a totally of 4kg wet clothes and you put them on the dryer. The coefficient of drying K come from this formula : K = Weight of wet clothes / Weight of dry clothes So it depends from the speed of your dryer!
What is co-efficient of drying?
The coefficient of drying is a number about the utility of a dryer. A simple example : You have dirty clothes dry, and you wash them. So now, you have a totally of 4kg wet clothes and you put them on the dryer. The coefficient of drying K come from this formula : K = Weight of wet clothes / Weight of dry clothes So it depends from the speed of your dryer!
