The recombination of l atoms in the gas phase in the presence of argon (which removes the energy released by the formation of an l-l bond, and so prevents the immediate dissociation of a newly formed l2 molecule) was investigated and the order of the reaction was determined by the method of initial rates. The initial rates of reaction of 2 l(g) + Ar(g) → l2(g) + Ar(g) were as follows: [l]0/( 10-5 mol dm-3) 1.0 2.0 4.0 6.0V0/(mol dm-3 S- 1) (a) 8.70 X 10-4 3.48 X 10-3 1.39 X 10-2 3. 13 X 10-2 (b) 4.35 x 10-3 1.74 x 10-2 6.96 x 10-2 1.57 x 10-1 (C) 8.69 X 10-3 3.47 X 10-2 1.38 X 10-1 3. 13 X 10-1The Ar concentrations are (a) 1.0 x 10-3 mol dm-3 , (b) 5.0 x 10-3 mol dm-3, and (c) 1.0 x 10-2 mol dm-3 . Find the orders of reaction w ith respect to I and Ar and the rate constant.
The recombination of l atoms in the gas phase in the presence of argon (which removes the energy released by the formation of an l-l bond, and so prevents the immediate dissociation of a newly formed l2 molecule) was investigated and the order of the reaction was determined by the method of initial rates. The initial
[l]0/( 10-5 mol dm-3) 1.0 2.0 4.0 6.0
V0/(mol dm-3 S- 1) (a) 8.70 X 10-4 3.48 X 10-3 1.39 X 10-2 3. 13 X 10-2
(b) 4.35 x 10-3 1.74 x 10-2 6.96 x 10-2 1.57 x 10-1
(C) 8.69 X 10-3 3.47 X 10-2 1.38 X 10-1 3. 13 X 10-1
The Ar concentrations are (a) 1.0 x 10-3 mol dm-3 , (b) 5.0 x 10-3 mol dm-3, and (c) 1.0 x 10-2 mol dm-3 . Find the orders of reaction w ith respect to I and Ar and the rate constant.
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