Question
Dr. Ewing acknowledges that he does not have a problem with coffee, he has a problem...
Dr. Ewing acknowledges that he does not have a problem with coffee, he has a problem without it. Knowing this, he has asked you to design a coffee pot that will heat water in as short a time as possible. If you need to heat 500 mL of water from room temperature (700F) to brewing temperature (1950F) in 20 seconds, how much power, in units of Watts, is required? You may assume the specific heat of water is 4.18 J/(g 0C).
Homework Answers
Answer #1
Change ml of water into grams then use formula of work done
.change is same in any unit so not need to convert farenheight to
degree .then aplly formula of power=work done/time taken. Finally
power is equal to 13,062.5w.
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