1/8 of a second (2 significant figures). When this reaction occurs at a specific temperature, its rate is first order with a rate constant of let's say a concentration in a vessel.
The proportionality constant (k) connecting the rate of the reaction to reactant concentrations determines the specific rate constant (SRC).
The reaction's equation is CICH2CH2Cl (g) --> CH2CHCI (g) + HCl (g)
Rate constant (k) equals 2.01 s-1
This is a first order reaction based on the rate constant's units.
Initial Concentration: 1.34 M t =
Final concentration equals 20 percent of 1.34, or 0.268 M.
First order reactions have the integrated rate rule ln[A] = ln[A]o - kt ln(0.268) = ln(1.34) - 2.01(t) -2.01(t) = - 1.6094 t = 0.8007 0.80 seconds (2 significant figures).
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