As water freezes, the attractions the water molecules have for one another overcome ... The boiling point of liquid nitrogen is −196 °C. The freezing point is −210 °C. To get an idea of how cold ...
Dr Yan cooled the bottles by floating them in a bucket of ice, salt, and water. Salt lowers the freezing point of water, so the salt basically makes the ice melt (this is why salt-grit is added to ...