You add 500 mL of water at 10°C to 100 mL of water at 70°C. What is the most likely final temperature of the mixture?

Answer 1

Would it not be the weighted average of the two temperatures....?

If we were aware of heat capacities—which we aren't because you haven't cited any—would we not anticipate that, given the mass of each volume, the final temperature in a situation like this would be the WEIGHTED average of the two temperatures?

#(500*mLxx10""^@*C+100*mLxx70""^@C)/(500*mL+100*mL)=20""^@C#.....

In any case, you should refer to your text for a more advanced method. However, keep in mind that this calculation lends itself easily to a basic experiment with a thermometer, a few beakers, or polystyrene cups.

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Answer 2

Avery Adams

The most likely final temperature is approximately 26.7°C.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.