Photochemical Reactions
Chemistry ⇒ Chemical Reactions and Equations
Photochemical Reactions starts at 10 and continues till grade 12.
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A photochemical reaction has a quantum yield of 0.5. If 2 × 1020 photons are absorbed, how many molecules react?
A solution of chlorine in water is exposed to sunlight and oxygen is evolved. Write the balanced chemical equation for this photochemical reaction.
Calculate the energy (in joules) of a photon with a wavelength of 400 nm. (Use h = 6.626 × 10-34 J·s, c = 3.0 × 108 m/s)
Describe the difference between a photochemical and a thermal reaction.
Describe the effect of wavelength of light on the rate of a photochemical reaction.
Describe the importance of photochemical reactions in the synthesis of vitamin D in the human body.
Explain the role of chlorophyll in the photochemical reaction of photosynthesis.
Explain the term 'photosensitizer' in photochemical reactions.
Explain why photochemical reactions are generally more selective than thermal reactions.
Explain why the photochemical reaction between hydrogen and chlorine does not occur in the dark.
What is a photochemical reaction?
What is the quantum yield of a photochemical reaction?
