Asked by Anonymous

A bowl of 471 g of water is placed in a microwave oven that puts out 591 watts (J/s). How long would it take in seconds to increase the temperature of the water from 12.0oC to 53.3oC? Use SF.

I'm not really sure how to do this, so any help would be appreciated!
Answered by bobpursley
power*time=energy=mass*specificheat*(53.3-12)

solve for time

I have no idea what you mean by SF
Answered by Anonymous
Okay thanks. I got the answer to be 81427.33. SF just means significant figures.
Answered by Anonymous
is that right? With significant figures it's 81000.