Someone enjoys their coffee at a temperature of 70.0C. The liquid coffe has a mass 470g...

Someone enjoys their coffee at a temperature of 70.0C. The liquid coffe has a mass 470g and must be raised in temperature by 50.0C immediately prior to enjoyment. The specific heat of water is 4.18 joules/(g * C). A standard microwave oven is used to facilitate the transfer of morning energy into the moring coffee. A) if the microwave operates at 80.0% efficiency, how much power output is actually required to perform this task in 120 seconds (answer in kW). B) if the kitche circuit is maintained at standard 120 volts, how much current will the microwave oven be demanding from the kitchen during this 120 sec. microwave opereration (answer in ampere)

Expert Solution

Manojponduru answered 2 years ago

There is a liquid with a mass of 642 grams at a temperature of 24 degrees...

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1. Coffee temperature ~ The temperature of coffee served at a restaurant is approximately normally distributed...

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A freshly brewed cup of coffee has temperature 95°C in a 20°C room. When its temperature...

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A cup of hot coffee has a temperature of 201˚F when freshly poured, and is left...

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Can someone please check these? Looking at the market for coffee. Average income abroad has increased...

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