The conventional equilibrium considerations do not apply when a reaction is being driven by light absorption. Thus the steady state concentrations of products and reactions might differ significantly from equilibrium values. For instance, suppose the reaction A B is driven by light absorption and that its rate is la, but the reverse reaction B A is bimolecular and second order with a rate k[B]2. What is the stationary state concentration of B? Why does the photostationary state differ from the equilibrium state?

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Chapter1: Chemical Foundations
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The conventional equilibrium considerations do not
apply when a reaction is being driven by light
absorption. Thus the steady state concentrations of
products and reactions might differ significantly from
equilibrium values. For instance, suppose the reaction A
B is driven by light absorption and that its rate is la, but
the reverse reaction B A is bimolecular and second
order with a rate k[B]2. What is the stationary state
concentration of B? Why does the photostationary
state differ from the equilibrium state?
Transcribed Image Text:The conventional equilibrium considerations do not apply when a reaction is being driven by light absorption. Thus the steady state concentrations of products and reactions might differ significantly from equilibrium values. For instance, suppose the reaction A B is driven by light absorption and that its rate is la, but the reverse reaction B A is bimolecular and second order with a rate k[B]2. What is the stationary state concentration of B? Why does the photostationary state differ from the equilibrium state?
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