Why did the can Crush?

Question

In chemistry class we did a lab where we put some water in a soda can and heated it to a boil and then flipped it over into cold water and the can crushed. Now I have to write a paragraph on why the can crushed...does anyone know?

Answer 1

When the water heated to the boiling point so did the air in the can. hot air takes up much less space than cold air, when you turned the can over you sealed the opining the cooling air inside the can started to condense causing a partial vacuum. Less air pressure on the inside combined with the higher air pressure on the outside caused the can to implode and collapse.

Answer 2

When you heat up the water, it is going to change into water vapor.

A gas form of any thing takes more space that the liquid does so by heating up the can, some of the air inside the can also heated up making the volume larger. because of this, some of the air escaped

Now when you tunred it in the cold water, the temperature decreased and the air inside the can became cold thus requiring less volume or space

but the air that the left the can is not there anymore and thus the volume decreased by creating a vacume, crushing the can

Answer 3

The pressure inside the can is less than the air pressure on the outside. When the opening of the can is sealed by the water, the air pressure crushes it. When you increase the temperature inside the can, the pressure increases as to let the air escape out the opening, leaving low pressure inside. The same would work if you put an plastic bottle in the microwave for about 20 sec and take it and cap it. Put it in the fridge or freezer and see what happens.

Answer 4

I think it's a pressure difference, you have high pressure caused by the heat, when you all of a sudden turned that into low pressure by rapidly cooling it you form a vacuum and without it being able to draw any more air in fast enough, it crushes to equalize the pressure, much like a submarine.

When things get hot they expand, when they get cold they contract, that's the easy way to remember it. Except water is backwards. But in this case you're dealing with air.

Answer 5

The water did not fill the can, but was only a small percentage of the volume? If so then the steam in the can was condensed with the ice bath causing the air inside to have much less volume. This causes the air pressure outside the can to crush the can.

Answer 6

Because a low pressure is created inside tha can because the the cold water cools the lighter , hot air inside the can which tends to contract causing a low pressure inside the can plus the atmospheric pressure ,which leds to the crushing of the can

Answer 7

well when you focas attention onto a can by putting it on something bigger than it like a stove, or any thing that does something, and is not like an can,./if that machine puts something into the can it has to get it back, its just some of the stuff that comes out of the stove going throught
the metal back into the stove area,

and some of it goes all the way back in