Science Common Sense

1743 - How do temperature and pressure affect the solubility of gases?

Imagine a soda can with carbonation bubbles. Temperature and pressure affect how well gases dissolve in a liquid.

1. Temperature: When it's warmer, gases don't mix as well with liquids. They want to escape, which is why soda goes flat on a hot day. When it's cooler, gases mix better with liquids, and the soda stays fizzy.
2. Pressure: If the pressure is high, like when you tightly close a soda bottle, gases mix better with liquids. But if you open the bottle and the pressure is low, the gases escape, and the soda goes flat.

So, to sum it up:

• Low temperature and high pressure: Gases mix well with liquids.
• High temperature and low pressure: Gases escape from liquids.