Review I Constants I Periodic Table 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 12.4 cm . How many photons are required to heat 235 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g · K) , as water over this temperature range. Express the number of photons numerically. • View Available Hint(s) Hν ΑΣφ photons

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
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Review I Constants I Periodic Table
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 12.4 cm . How many photons are required to heat 235 mL of coffee from 25.0 °C to 62.0 °C?
Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g · K) , as water over this temperature range.
Express the number of photons numerically.
• View Available Hint(s)
Hν ΑΣφ
photons
Transcribed Image Text:Review I Constants I Periodic Table 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 12.4 cm . How many photons are required to heat 235 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g · K) , as water over this temperature range. Express the number of photons numerically. • View Available Hint(s) Hν ΑΣφ photons
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