Question

For water, ∆Hfus = 333 J/g, ∆Hvap = 2260 J/g.

How many grams of water are converted to steam when 15,000 J of heat is absorbed?
Please help

Answer 1

The heat required to convert 1 gram of water to steam is ∆Hvap = 2260 J/g.

So, to convert 15,000 J of heat to steam, we need to divide 15,000 J by 2260 J/g = 6.62 g.

Therefore, 6.62 grams of water are converted to steam when 15,000 J of heat is absorbed.