Liquid nitrogen is about -70 degrees C when nitrogen is poured over a balloon it shrinks dramatically This balloon rapidly expands to its normal size when set out at room temperature explain this?

Answer 1

The liquid is so cold that the air particles in the balloon almost stop moving, which causes the balloon to shrink. When the balloon is taken out of thr liquid the particles regain speed and expand inside of the balloon.

Answer 2

When liquid nitrogen is poured over a balloon, the cold temperature causes the air inside the balloon to condense, decreasing its volume and making the balloon shrink. As the balloon is brought back to room temperature, the air inside it gains thermal energy, causing it to expand back to its original size. This is because gases expand when heated and contract when cooled, demonstrating the principles of thermal expansion.