How does pressure affect the boiling point of water?

Among the perennially popular items on this blog over the years have been the items about the freezing point and the boiling point of water and how they are affected by dissolving salts or other solutes in it or raising and lowering the air pressure. It’s an evergreen topic on the science curriculum and I suspect a lot of the tens of thousands of visitors who hit the site searching for the topic are students hoping to get a grip on their chemistry homework or physics assignment.

Anyway, the wonderful infographic chemistry blog Compound Interest has done a nice chart on the topic too, which covers the important points about pressure and solutes. Do check out Andy’s graphic and the rest of his blog, and his book.

boiling-water