Green light has a wavelength of 5.0 ×10^2 nm. What is the energy, in joules, of one photon of gr

step 1 We are first asked to find the energy of one photon of green light. To find that energy of one p

Green light has a wavelength of 5.0 ×10^2 nm. What is the...

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Key Concepts

Photon Energy

This concept refers to the amount of energy carried by a single photon, which is the smallest quantum unit of light. The energy of a photon is quantized, meaning it can only take on specific values determined by the properties of the light, and is given by the equation E = hc/?.

Planck's Equation (E = hc/?)

This equation links the energy (E) of a photon with its wavelength (?) through Planck's constant (h) and the speed of light (c). It is a fundamental relation in quantum mechanics that demonstrates the quantized nature of electromagnetic radiation. Understanding this equation is crucial for calculating photon energies in various contexts.

Wavelength Conversion

Wavelength conversion involves changing the units of wavelength to ensure consistency in calculations, typically converting from nanometers (nm) to meters (m). This step is essential because the constants in the photon energy equation (h and c) are defined in SI units.

Avogadro's Number

Avogadro's number represents the number of entities (atoms, molecules, or photons) in one mole, approximately 6.022 x 10^23. It is used to scale calculations from the energy of a single photon to the energy of a mole of photons, bridging the microscopic and macroscopic scales in chemistry.

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