A flask with gas was heated in a boiling water, why did water rush into the flask when submerged n cold water?

5 responses so far ↓

• 1 SardonicMacaroni // Sep 8, 2008

  Um, because it was open.

• 2 Tea Bag // Sep 8, 2008

  you tell me Mr. Wizard

• 3 Kat // Sep 8, 2008

  Expansion and contraction. That how metal reacts to heat and cold. But I like Sardonics answer. It's funny.

• 4 Jazz Hands // Sep 8, 2008

  Because negative pressure was created when the heated gases condensed and rushed toward the bottom of the flask.

• 5 Adam C // Sep 8, 2008

  The gas was hot.
  When put into cold water, the gas cooled.
  When gases cool, volume lessens (assuming constant pressure.
  The water filled in the gap left by the shrinking gas