Hi,
I’ve been stuck on this question for a bit now.
A mass of 0.35kg ice at -15∘C is lowered into an insulated beaker containing water at 59∘C
. What is the minimum mass of water at this temperature needed in the beaker to achieve a final temperature of 0.0∘C?
From previous parts of the question I worked out that it required 10657.5J to heat the ice to 0 degrees, it then required an additional 117250J to melt the ice.
I think I need to use Q=mc delta T with the smallest value of Q that I can but I’m not sure what value of Q I need as I tried 10657.5 and got a mass of 0.043kg but it said that although that results in 0degrees it isn’t the smallest mass.
Any help would be much appreciated