A soda can can collapse in cold water if this activity is done right. Boiling water needs to be in the can then the can needs to be inverted and placed in cold water. This should make the can collapse, but why? The water vapor in the can pushes the air out of the can, then when placed in cold water the water vapor condensates. That doesn't make the can collapse however, the air pressure on the outside of the can does, the water vapor condenses and becomes a liquid, a liquid's molecules are closer together than a gas, which the water vapor was. Since the water condensed there was unfilled space in the can and the air crushes the can.
website
No comments:
Post a Comment