Now let's look at this picture. Well, once again, why is it that a balloon explodes? Well, when the balloon is when you're not compressing the balloon, when you're just dangerous up, it has a certain pressure and a certain volume. When you take it in your hand and you begin squeezing it, you begin decreasing the volume. Boils law states that if you decrease volume, pressure must increase because our constant remains the same. And that means pressure will begin to increase and the ball or the balloon will pop when the pressure is large enough for it to burst open and pop.