Micro wave

120 - You did not specify starting or ending temperatures. or the size of the oven etc.

Did you mean 120 microwave ovens?

I wasn't going to answer this thread (not enough info, as you said) but I couldn't resist commenting on the number you gave.

Yes 120 ovens. If you heat a cup full at a time for x secs and take about y secs to remove and fill the cup with new water.

A person would be required to fill the cups, another to take it out and another to add sugar, milk and coffee.

I just created jobs for 630 people. A must in developing countries.

Ok the 120 was selected at random.

Depends on the power of the microwaves.

Water has a thermal capacity of 4.18kJ/kg.degC. One can do a back-of-the-envelope calculation based upon that figure.

Lets put a few numers out ther for the hell of it. Starting temp is a cool 10°C with the final temp being 100°C. How many watts will be needed to heat the water in ten minutes.

I'm being lazy (actually at home sick this week) so I didn't do the math myself...Sorry.

42 microwaves.

.042 milliwaves.

Just for the sake of asking WHY DO YOU NEED TO KNOW THIS?

Knowledge is its own reward.

The question came at the right time, our kettle broke and we must make our coffee in the micro wave.

15 persons, 13 mugs and 2 cups in a 15 min break (- 5 min to drink = 10 min). we don't really need 60 gal but someone must wash the cups.

Help is urgently needed. Withdrawal symptoms are appearing.

Just a question are we talking about ovens or waves?

Right now, I'd rather have the waves. I haven't been to the beach in a long time. It's like an oven inside the house.

If the microwaves in question are 2.45 GHz (apparently typical for microwave ovens), it will take 2.45 x 10^9 X 60 x 60 or 8,820,000,000,000 microwaves to heat anything for an hour.

Assuming you have a 60 gallon microwave oven.

oops, that should have been,

If the microwaves in question are 2.45 GHz (apparently typical for microwave ovens), it will take 2.45 x 10^9 X 60 x 10 or 1,470,000,000,000 microwaves to heat anything for 10 minutes.

Assuming you have a 60 gallon microwave oven.

Oh. Er, Um?