Answer
Steam has more latent heat that the liquid water at the same temperature. Thus the latent heat of 15g of steam at 100 ^{\circ} C is more than that of liquid at 100^{\circ}C. Hence steam melts more ice than water.
Work Step by Step
Steam has more latent heat that the liquid water at the same temperature. Thus the latent heat of 15g of steam at 100 ^{\circ} C is more than that of liquid at 100^{\circ}C. Hence steam melts more ice than water.
