NEET2013Chemistry-Photochemistry

NEET 2013 Chemistry Law of Photochemical Equivalence MCQ Question

Type: MCQ-numerical-Medium-Class 11

According to law of photochemical equivalence, the energy absorbed (in ergs / mole) is given as (h = 6.62 x 10⁻²⁷ ergs, c = 3 x 10¹⁰ cm s⁻¹, Nₐ = 6.02 x 10²³ mol⁻¹):

A

1.196 x 10⁸ / λ

B

2.859 x 10⁵ / λ

C

2.859 x 10⁶ / λ

D

1.196 x 10⁶ / λ

Correct Answer

Option A

Detailed Explanation

The energy absorbed is calculated using E = hν, where ν = c/λ. The energy per mole is then multiplied by Avogadro's number.

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