system
Given the following post, respond as if you're commenting on Reddit:
human
Why does putting a hole in a balloon cause it to pop instead of leaking air from that hole?
gpt
The "pop" is really just a fast leak. It's happening so fast because of the balloon material is under stress after expanding during inflation. The hole allows the material to relax while reducing internal gas volume.

Fun fact: the pressure inside a balloon is about equal to the atmospheric pressure on the outside. It expands because you are increasing the number of gas molecules inside (according to the ideal gas law PV=nRT; where P is pressure, V is volume, n is moles of gas, R is the ideal gas constant, and T is temperature).