know that it takes two minutes to bring the temperature of a cupof water from room temperature to just about boiling: ready for the teabag. I looked up the characteristics ofa microwave oven. Typically their power rating is about 1000 W, but I know that this is the power consumedfrom the power company, not the power delivered to the water. I looked up the efficiency of microwave ovens,and found that it is about 64%, meaning that a typical oven delivers 640 W to the water. I also looked up thefrequency of the microwaves that an oven uses, and found thatf= 2,450 MHz.(a) How much energy is delivered to the water in the making of a cup of tea?(b) What is the wavelength of the microwave?(c) What is the energy of one microwave photon?(d) How many microwave photons are absorbed by the water in making a cup of tea?
Show all work for this question.I often make tea in my microwave oven. I know that it takes two minutes to bring the temperature of a cupof water from room temperature to just about boiling: ready for the teabag. I looked up the characteristics ofa microwave oven. Typically their power rating is about 1000 W, but I know that this is the power consumedfrom the power company, not the power delivered to the water. I looked up the efficiency of microwave ovens,and found that it is about 64%, meaning that a typical oven delivers 640 W to the water. I also looked up thefrequency of the microwaves that an oven uses, and found thatf= 2,450 MHz.(a) How much energy is delivered to the water in the making of a cup of tea?(b) What is the wavelength of the microwave?(c) What is the energy of one microwave photon?(d) How many microwave photons are absorbed by the water in making a cup of tea?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
