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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![**Expert Q&A**
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**Question:** What is the energy of a photon of light with a wavelength of 469 μm?
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This question involves calculating the energy of a photon based on its wavelength, which is 469 micrometers (μm). To find the energy, use the equation:
\[ E = \frac{h \cdot c}{\lambda} \]
Where:
- \( E \) is the energy,
- \( h \) is Planck's constant (\(6.626 \times 10^{-34} \, \text{J}\cdot\text{s}\)),
- \( c \) is the speed of light (\(3.00 \times 10^{8} \, \text{m/s}\)),
- \( \lambda \) is the wavelength in meters.
First, convert the wavelength from micrometers to meters:
\[ \lambda = 469 \, \mu\text{m} = 469 \times 10^{-6} \, \text{m} \]
Next, substitute the values into the equation:
\[ E = \frac{6.626 \times 10^{-34} \times 3.00 \times 10^{8}}{469 \times 10^{-6}} \]
Calculate to find the energy \( E \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce778a43-83cd-4b0c-a9c1-cb2530317a44%2F0894e875-b490-4c49-99d6-3f1c64369364%2Fwywkjt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Expert Q&A**
---
**Question:** What is the energy of a photon of light with a wavelength of 469 μm?
---
This question involves calculating the energy of a photon based on its wavelength, which is 469 micrometers (μm). To find the energy, use the equation:
\[ E = \frac{h \cdot c}{\lambda} \]
Where:
- \( E \) is the energy,
- \( h \) is Planck's constant (\(6.626 \times 10^{-34} \, \text{J}\cdot\text{s}\)),
- \( c \) is the speed of light (\(3.00 \times 10^{8} \, \text{m/s}\)),
- \( \lambda \) is the wavelength in meters.
First, convert the wavelength from micrometers to meters:
\[ \lambda = 469 \, \mu\text{m} = 469 \times 10^{-6} \, \text{m} \]
Next, substitute the values into the equation:
\[ E = \frac{6.626 \times 10^{-34} \times 3.00 \times 10^{8}}{469 \times 10^{-6}} \]
Calculate to find the energy \( E \).
Expert Solution

Interpretation Introduction
Interpretation: The energy of a photon of light with a wavelength of is to be determined.
Concept Introduction: The energy of a photon is proportional to its frequency, as stated by the Planck's Einstein's equation,
Where,
E - the energy f the photon
h - Planck's constant =
v - The frequency of the photon
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