Consider the Dimerization Reaction Below: 2A $\rightarrow$ A₂
Rate = K[A]²
When the Initial Concentration of a K[A]²

Consider the dimerization reaction below: 2A $\rightarrow$ A₂
Rate = k[A]²
When the initial concentration of A is 2.0 M,it requires 30 min for 60% of A to react.Calculate the rate constant.

A) 1.1 *10 ^{- 3} M ^{- 1}.s ^{- 1}
B) 3.2 *10 ^{- 4} M ^{- 1}.s ^{- 1}
C) 5.0 *10 ^{- 4} M ^{- 1}.s ^{- 1}
D) 1.9 *10 ^{- 4} M ^{- 1}.s ^{- 1}
E) 4.2 *10 ^{- 4} M^{- 1}.s ^{- 1}