For the reaction 2cof_2(*g) co_2(g) + cf_4(g) at a temperature. A reaction mixtu

Question

For the reaction 2cof_2(*g) co_2(g) + cf_4(g) at a temperature. A reaction mixture at this temperature initially contains all three gases in equal. Which is true of this reaction mixture? Q K; the reaction proceeds toward the reactants The reaction A rightarrow products obeys second order kinetics. What is the molar concentration of A remaining after 2.00 minutes if the reaction has a rate constant of 0.0482 M^-1s^-1 and the initial concentration of A is 0379 M. According to the collision theory for chemical reactions, why do most reaction rates increase as temperature is increased? At higher temperatures the concentration of reactants increases. the activation energy of the reaction decreases. more molecules collide with the necessary energy. more molecules have the proper orientation when they collide.

Explanation / Answer

33.

The integrated rate law is 1/[A] = kt + 1/[Ao]

2 minutes = 120 seconds

1/[A] = (0.0482)(120) + 1/(0.379)

[A] = 0.119 M

34.

Going from experiment 3 to 4, [B] remains same, [C] remains same, [A] halves. The rate remains same. Hence the rate is zero order w.r.t. A. So anser is (A)

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