Why Does Salt Affect The Temp Of Boiling Water?
Adding table salt to water causes the water to boil at much higher temperatures. This is because the water molecules near the surface bop around when the water is about to boil. They get kicked and pushed by the nearby jiggling molecules into the air. The air molecules right above knock them back. Water boils only when enough surface molecules have enough energy to actually zap past the air molecules that are directly above the water surface. When we add salt to water, the salt molecules accompany the jiggling water molecules so water molecules have a small chance of getting kicked by a neighbor hard enough to be able to escape. As the salt molecules are very weak. So few water molecules get past the air molecules and it takes longer for the water to boil.
