this was in a quiz i did ages ago and i never found out the answer.(adsbygoogle = window.adsbygoogle || []).push({});

someone makes 2 cups of coffee. Cup 1 has coffee then water then milk added and is left to stand for 15mins. Cup 2 has coffee then water added then is left to stand for 15 mins, then milk is added. which one would be hottest?

i think it would be cup 2 but im not sure and i cant really explain it properly either.

thank to anyone who can help, ive been trying to work it out for ages

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Cooling cups of coffee

**Physics Forums | Science Articles, Homework Help, Discussion**