Thread: Hot coffee
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Rogerio
#6
Jan10-05, 01:56 PM
P: 403
If
1) the specifics heats (coffee & milk) are the same, and
2) the coeficients (coffee & milk) of energy exchange with the ambient are the same,
then, it doesn't matter if you mix coffee and milk and wait 10 minutes, or if you wait 10 minutes and then mix them : the final temperature will be the same.