I'm somewhat stumped on this question from my son who's in Grade 10 Physics. Question: You put 100g of ice into a glass of 2400g of water at 10C. What is the final temperature of the water? Hmmm. Sounds simple, BUT, I know, Q= m(delta)H(fus) where (delta)H(fus)= 333J/g for water and Q=mc(delta)T where m=mass(g), c=specific heat of water = 4.18J/gC BUT we need to find the (delta)T from Tintial to Tfinal. Where do I start? Or am I missing something here?