Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. ▼ Part A Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 265 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g mL-¹, and specific heat capacity, 4.184 Jg¹K¹, as water over this temperature range. Express the number of photons numerically. ► View Available Hint(s) —| ΑΣΦ ? photons
Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. ▼ Part A Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 265 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g mL-¹, and specific heat capacity, 4.184 Jg¹K¹, as water over this temperature range. Express the number of photons numerically. ► View Available Hint(s) —| ΑΣΦ ? photons
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Microwave ovens use microwave radiation to heat
food. The microwaves are absorbed by the water
molecules in the food, which is transferred to other
components of the food. As the water becomes hotter,
so does the food.
Part A
Suppose that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 265 mL of coffee
from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g mL-1, and specific heat capacity, 4.184
Jg-¹ K-¹, as water over this temperature range.
Express the number of photons numerically.
► View Available Hint(s)
Η ΑΣΦΑ
Submit
?
photons

Transcribed Image Text:Part D
What might the photon from Part C be useful for?
► View Available Hint(s)
O Warming up a frozen hot dog
O Getting a suntan
O Checking for broken bones
O Night-vision goggles
O Listening to music
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