The minimum amount of steam at 100°C needed to melt 1 gram of 0°C ice is
A)0.125 gram.
B)0.148 gram.
C)6.75 grams.
D)8 grams.
E)none of the above

Question

Quizplus · Accepted Answer

Latent heat of fusion of ice = 336 J/gLatent heat of vaporization of water = 2260 J/gHeat required to melt 1 g of ice = 336 JHeat released by 1 g of steam = 2260 JTherefore, the minimum amount of steam needed to melt 1 g of ice = 336/2260 = 0.148 g

The Minimum Amount of Steam at 100°C Needed to Melt