How hot can boiling water get?
At sea level water boils at 100 degrees C. Take your pan of water to the top of Everest and ,because there is less atmosphere at 29,000 feet, the water boils at around 90 degrees C. Put your pan of water in a sealed metal container and heat, the water boils above 100 degrees according to the amount of pressure within the pressure chamber. In steam locomotives the water in the boiler is under pressure and then superheated ,ending up at over 300 degrees C.
