Problem 1
Which three gases constitute most of Earth's atmosphere?
Problem 3
What is the wavelength range for visible light? Does ultraviolet light have shorter or longer wavelengths than visible light?
Problem 4
Which atmospheric gas is primarily responsible for filtering sunlight in the \(120-220-\mathrm{nm}\) region? Which, if any, gas absorbs most of the Sun's rays in the \(220-320 \cdot \mathrm{nm}\) region? Which absorbs primarily in the \(320-400-\mathrm{nm}\) region?
Problem 5
What is the name given to the finite packets of light absorbed by matter?
Problem 6
What are the equations relating photon energy \(E\) to light's frequency \(\nu\) and wavelength \(\lambda\) ?
Problem 7
What is meant by the expression photochemically dissociated as applied to stratospheric \(\mathrm{O}_{2}\) ?
Problem 10
What is meant by the phrase excited state as applied to an atom or molecule? Symbolically, how is an excited state signified?
Problem 11
Explain why the phrase ozone layer is a misnomer.
Problem 12
Define the term free radical, and give two examples relevant to stratospheric chemistry.
Problem 15
Explain why, atom for atom, stratospheric bromine destroys more ozone than does chlorine.
