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CGP EDU Academic Team
Published on: August 11, 2026
Parallel reactions is the such reaction in which different products are produced from the same reactant through the different reaction for the following reaction
E represent the activation energies. At 50 S intervals after experiment began it was found [A] = 20 × 10 –3 (M) ; [B] = 10 ×10 –3 (M) ; [C] = 15 × 10 –3 (M) ; [D] = 5 × 10 –3 (M)
Given : log 2 = 0.3 ; log 3 = 0.48 ; log 5 = 0.7 ;
log 7 = 0.85
(i) What is the value of overall rate constant (K) ?
A
1.84 × 10 –2 S –1 
× 10 –2 S –1 
= E
× 10 –2 S –1 = E
B
6.71 × 10 –2 S –1 
× 10 –2 S –1 
= E
× 10 –2 S –1 = E
C
3.86 × 10 –2 S –1 9.2 × 10 –3 S –1 E = 
D
3.22 × 10 –2 S –1 (ii) What is the value of K 2 ? 1.84 × 10 –2 S –1 (iii) What is the correct relation among E, E 1 , E 2 and E 3 ? 
= E
= E
Text Solution
Verified by ExpertsThe correct answer is:
A
(i)
Sol. 1.84 × 10 –2 S –1
(ii)
Sol. 9.2 × 10 –3 S –1
(iii)
Sol. 
= E
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