Will hot salty water cool down as fast as hot clean water?
Question #92290. Asked by kemical.
Last updated Jul 11 2021.
markswood
Answer has 22 votes
Currently Best Answer
markswood 17 year member
578 replies
Answer has 22 votes.
Currently voted the best answer.
It depends on what temperature "hot" is, how much salt is present in how much water. Salt raises the boiling point of water, so theoretically you could get the salty water hotter than the clean water and therefore, all other parameters being equal, it should take a bit longer to cool down.
https://www.reference.com/science/fresh-water-hold-heat-longer-salt-water-c531780745862da4