Question

2 A(g) + B(g) \longrightarrow⟶ 2 C(g)

Rate = k [A][B]

At the beginning of one trial of this reaction, [A] = 3.0 M and [B] = 1.0 M. The observed rate for the formation of C is 0.36 mol L-1 sec-1.



The numerical value of k, the rate constant, is closest to


108
0.040
0.12
6.0

Answer 1

The correct answer is 0.12.

Step-by-step explanation:

According the reaction kinetics we all know that

Rate=k[A][B]

K= rate constant

[A] = Concentration of A

[B] =Concentration of B

R=0.36mol/litre/sec

K=?

K= rate÷[A][B]

= 0.36÷3

=0.12