Unit of rate of reaction for a second order mol-1 reaction is
Correct answer: C. mol-1dm3s-1
- A. s-1
- B. mol dm-3s-1
- C. mol-1dm3s-1
- D. mol-2dm+6s-1
Explanation
For a second-order reaction, the rate law is: Rate = k [A]^2Units of Rate = mol L^-1 s^-1Units of [A] = mol L^-1Rearranging the rate law:k = Rate / [A]^2Units of k = (mol L^-1 s^-1) / (mol L^-1)^2Simplifying:Units of k = L mol^-1 s^-1
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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