A microwave oven works by generating electromagnetic radiation that can be absorbed by water molecules causing them to rotate faster. The friction of the rotating water molecules is lost to their surroundings, thus heating up the food you place in the microwave oven. A microwave oscillator (thing that makes microwaves) emits radiation at a wavelength of 12.24 cm. What is the minimum time it will take a 800 Watt (i.e. 800 Js4) microwave oven emitting 12.24 cm wavelength photons to heat 100 g of water from 20° to 50°C? The heat capacity of water is 4.18 Jg deg1?
A microwave oven works by generating electromagnetic radiation that can be absorbed by water molecules causing them to rotate faster. The friction of the rotating water molecules is lost to their surroundings, thus heating up the food you place in the microwave oven. A microwave oscillator (thing that makes microwaves) emits radiation at a wavelength of 12.24 cm. What is the minimum time it will take a 800 Watt (i.e. 800 Js4) microwave oven emitting 12.24 cm wavelength photons to heat 100 g of water from 20° to 50°C? The heat capacity of water is 4.18 Jg deg1?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section4.11: Fuels For Society And Our Bodies
Problem 4.20E
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