So when I'm on an airplane and I have a bag of chips, at some point when the pressure in the cabin lowers, the bag of chips will bulge up.
Here’s how I’d explain this on a molecular level:
There are air molecules inside the back of chips hitting the bag on the inside. There’s also air molecules outside of the bag of chips hitting the outside. Now, if the outside has a lot less of movement per area, the inside molecules kind of win this push contest and the bag thus blows up.
I assume that’s kind of correct? Or is it completely wrong?
I assume the same happens with an ear drum when f.i. driving a car in high altitude?
Now what I do not understand correctly is, what happens to things inside the bag? Do they also experience a change, because of the way the molecules inside move differently when they win against the outside molecules?