- Why is ice at 273 K more effective in cooling than water at the same temperature?
- What produces more severe burns, boiling water or steam?
A-1) Cooling effect of ice is more than water at same temperature
Ice is in solid state while water is in liquid state. Thus, ice will convert into liquid state by absorbing the latent heat of fusion. On the other hand, no such heat will be absorbed by water as it is already in the liquid state. Hence, ice will absorb more energy than water at 273K or 0o C. The more is the energy absorbed, the more is the cooling effect. As a result, the cooling effect of ice at 273 K or 0o C is more than water at the same temperature.
A-2) Steam causes more burns than boiling water
Steam has more energy than boiling water. It possesses the additional latent heat of vaporization. Therefore, burns produced by steam are more severe than those produced by boiling water.