Not to get too enginerdy on you (because from an engineering perspective, you are 100% correct) but some of the other reasons water is used is because of its massive capacity to "store" heat as both its heat capacity and phase change. It also is only moderately corrosive in an oxidizing environment, is non-toxic and ubiquitous on Earth.
All-in-all, water is an amazing molecule and most leftists don't understand that the majority of their electricity comes from a system that is very similar to the first steam locomotives and Aeolipile.
Not to get too enginerdy on you (because from an engineering perspective, you are 100% correct) but some of the other reasons water is used is because of its massive capacity to "store" heat as both its heat capacity and phase change. It also is only moderately corrosive in an oxidizing environment, is non-toxic and ubiquitous on Earth.
All-in-all, water is an amazing molecule and most leftists don't understand that the majority of their electricity comes from a system that is very similar to the first steam locomotives and Aeolipile.
Get Super Nerdy. I love Engineering.