If I put an air-tight container into the fridge, how do the contents still get cold?

Question

If I put an air-tight container into the fridge, how do the contents still get cold?

In: Chemistry

Answer 1

Air-tight doesn’t mean air-free. Air-tight containers seal the existing air in and outside air out. But it’s not under a vacuum. All those molecules both in and out are still moving and transferring heat.