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according to law of photochemical equivalence ,the energy absorbed is given as (in ergs/mole)

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One mole of photons is known as one Einstein of radiation. According to Stark-Einstein law of photochemical equivalence, one mole of reactant absorbs one Einstien of energy. For a photochemical reaction, a term called quantum yield is defined as:
Quantum yield $(ϕ) = \frac{N o . o f m o l e s o f r e a c t a n t c o n v e r t e d}{N o . o f E i n s t e i n a b s o r b e d}$
The correct statement(s) is/are:

Q. If an Einstein

(E)

is the total energy absorbed by

1

mole of a substance and each molecule absorbs one quantum of energy, then calculate the value of '

E (i n e r g s)

λ

c m

Q. Energy equivalent to one erg, one joule and one calorie is in the order

Q. In the photochemical decomposition of acetaldehyde, one photon of absorbed light decomposes one molecule of

C H_{3} C H O

∙ C H_{3} a n d ∙ C H O

^{'} I_{a b s}^{'}

is the intensity of light absorbed in the reaction. Write the rate equation for this photochemical decomposition. (Note: the first step in the photochemical reaction is temperature independent)
Calculate

[∙ C H_{3}] a n d \frac{d [C O]}{d t}

assuming steps (ii) to (iv) given are same and

[∙ C H_{3}], [∙ C H_{3} C O]

are under steady state.

Q. Energy equivalent to one erg, one joule and one calorie are in order:

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