If ' $I$ ' is the intensity of absorbed light and ' $c$ ' is the concentration of AB for the photochemical process $A B + h v \to A B^{}$ , the rate of formation of $A B^{}$ is directly proportional to :

c

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I

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I^{2}

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c \times I

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Solution

The correct option is D $c \times I$
The rate of formation of $A B^{*}$ is directly proportional to $c \cdot I$ .

The rate-determining step for all photo primary processes in pure species is given as $r = K \cdot I_{a b s}$ .

However in solution state, $r = K I_{a b s} \cdot C$ .

Hence, the correct answer is option $D$ .

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If 'I' is the intensity of absorbed light and 'c' is the concentration of AB for the photochemical process AB+hv→AB∗, the rate of formation of AB∗ is directly proportional to :

The correct option is D c×IThe rate of formation of AB∗ is directly proportional to c⋅I.The rate-determining step for all photo primary processes in pure species is given as r=K⋅Iabs. However in solution state, r=KIabs⋅C.Hence, the correct answer is option D.

If ' $I$ ' is the intensity of absorbed light and ' $c$ ' is the concentration of AB for the photochemical process $A B + h v \to A B^{}$ , the rate of formation of $A B^{}$ is directly proportional to :