Posted by Stefan on Saturday, December 4, 2010 at 6:24pm.
Energy converted to heat
= 1200*10^6W/0.31
=3.87*10^9W
=3.87&10^9 j/s
Now divide by 4.18 to convert to cal/s
and divide by the mass of water (in grams) per sec. to get the increase in temperature in °C.
Thanks for your help. For the answer I got it to be 0.925837321 by following your directions. When I submitted it to my online homework it said the answer was wrong and off by more than 10%.
Good Lord. How did you get .925 from 3.87E9/4.18 ?
By taking 3.87E9/4.18 then dividing it by the flow rate of the water (1.0E6 kg/s = 1.0E9 g/s)
I see the error.
Energy produced+heat=total
but it is given that energy produced/total is .31, which means heat produced is .69 of energy produced, so..
heat produced= .69*1200*10^6W/0.31
Now do the conversions.
check my thinking.
Thanks for your help! I got the correct answer
Sorry Stefan, and thank you Bob!
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