If you suspend an open-topped container of water in a pot of boiling water, water in the inner container will reach 100 degrees C but will not boil. Why is this?
You were not pulling air out of the water. You were reducing the pressure over the water so that it would go to its vapor phase (boil) at less than boiling temperature. Boiling temperature is a function of both temperature and pressure. Large boilers are often highly pressurized so that the water will store LOTS of heat energy and not boil until the water is very hot. If you boil water on top of a mountain, it will boil at a lower temperature than 212 deg F and the offset is proportional to the ambient pressure.this is kind of on the other side of this question
I was doing this in my 8th grade science class room
but we did not get a chance to finish it.
we put a cup of water into an airtight container
and slowly started to suck out all of the air and after like 5 mins the water started to look like it was boiling
with out the heat
now i can under stand the air being pulled out of the water but i am wondering after some time what would happen to the water
Remember what boiling is: when the molecules of the water have enough energy to escape the loose bonds of other water molecules to fly off. That can be achieved by eitherthat is pretty hard to understand but ok