Asked by Jen

"Luke Skywalker mixes 250g of hot water (75 deg C) with 500g of cool water (15 deg C). What is the final temperature of the water?"

If someone could just give me a formula, I'd be fine. :)

Answers

Answered by DrBob222
heat lost by hot water + heat gained by cold water = 0
mass H2O x specific heat water x delta T + (mass H2O x specific heat water x delta T) = 0
For delta T in each case substitute Tf - Ti (for Tf = final T and Ti = initial T). You will have only one unknown, namely Tf. Solve for that.
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