Q.

Rate constant of a reaction is  10 lit mole-1 min-1. Then the correct relation between half life and initial concentration for the reaction is

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a

t12∝ 1a

b

t12∝ a

c

t12is independent of initial concentration

d

t12∝ 1a2

answer is A.

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Detailed Solution

Units of K are  lit. mole-1 min-1General units of ‘K’ =  mole/lit1−ntime−1mole1−n litn−1time−1 = mole−1litmin−1n = 2it is a second order reactionGeneral condition       t12 ∝ a1-nthus  t12 ∝ 1a
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