Q. 10

# Show that t

Answer :

For a first order reaction the integrated rate eqauation are given as: Where,

t = time required for conc. change of [A]0 to [A]

[A]0 = initial concentration

[A] = final concentration

k = rate constant of reaction

Case I: at t = t1/2, [A] = [A]0/2  Case II: at t = t3/4, [A] = (1-0.75) × [A]0 = 0.25[A]0   Thus from both the cases we can say that OR

Consider the reaction, For a zero order reaction we know that the rate of the reaction does not depend on the concentration of the reactant. Thus the rate equation or rate law is given as: The sign is negative as the concentration of A is decreasing. Integrating both sides with limits,    Thus the integrated rate equation for zero order is given as, Rate this question :

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