Question

What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C?

Is Tf= 109 C?
Is it in the steam phase?

Answer 1

How could it be in the steam phase? Is the cold ice going to make it boil? And, it is not 109, it cant heat up.

The sum of heats gained =0
80(cice)(0+15)+80Hf+80cw(Tf-0)+250cw(Tf-85)=0
solve for Tfinal Tf