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Sagot :
The rate law for the reaction : r=k.[A]²
Further explanation
Given
Reaction
A ⟶ B + C
Required
The rate law
Solution
The rate law is a chemical equation that shows the relationship between reaction rate and the concentration / pressure of the reactants
For the second-order reaction it can be:
1. the square of the concentration of one reactant.
[tex]\tt r=k[A]^2[/tex]
2. the product of the concentrations of two reactants.
[tex]\tt r=k[A][B][/tex]
And the reaction should be(for second order) :
2A ⟶ B + C
Thus, for reaction above (reactant consumption rate) :
[tex]\tt r=-\dfrac{\Delta A}{2\Delta t}=k[A]^2[/tex]
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