Question

what the burn caused by steam is more severe than the burn caused by water even both are at same temperature of 100 degrees Celsius​

Answer 1

It possesses the additional latent heat of vaporization. So, when steam falls on skin and condenses to produce water it gives out 22.5 x 105 J/kg more heat than boiling water at the same temperature. Therefore, burns produced by steam are more severe than those produced by boiling water.