Saturday, June 19, 2010

How many Kilocalories of heat does the operation of a 1200-W hair dryer produce each second?

The answer is:



1 200 watt = 0.286 615 076 kilocalorie/second



How many Kilocalories of heat does the operation of a 1200-W hair dryer produce each second?

0.286 kilocal/sec



How many Kilocalories of heat does the operation of a 1200-W hair dryer produce each second?

Go to http://www.google.com/search?q=1200+Joul... and divide by 1000.



How many Kilocalories of heat does the operation of a 1200-W hair dryer produce each second?

1 cal = 4,185 Joule



P - power



Q - heat / energy



t - time



P = Q / t -%26gt;



Q = P x t = 1200 W x 1 sec. = 1200 Joule = 1200 / 4,185 cal = 286,738351.. cal = 0,28673... kcal

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