Question

One liter of water at 10° Celsius is added to one liter at 80° Celsius. What is the final temperature of the mixture?

Answer 1

What do you think it should be.........?

Explanation:

You know that energy is conserved, and that it can neither be created nor destroyed. You mix equal volumes of water at different temperature; the final temperature should be the weighted average of the 2 initial temperatures............i.e. `45` `""^@C`.