Chemical Kinetics

Practice fill-in-the-blank flashcards reviewing core concepts of chemical kinetics including rate laws, rate constants, reaction orders, and units.

Rate law is a mathematical expression showing the actual dependence of the rate of reaction on the concentration of __________.

reactants

The rate constant $k$ is equal to the rate of reaction when the concentration of each reactant is __________.

unity

The general formula for the unit of rate constant $k$ is __________.

$$mol^{1-m}\,L^{m-1}\,time^{-1}$$

For a second-order reaction ($m = 2$), the unit of the rate constant $k$ is __________.

$$mol^{-1}\,L\,time^{-1}$$

The value of the rate constant $k$ changes when there is a change in __________.

temperature

The rate constant $k$ is independent of the concentration of __________.

reactant

The overall order of reaction is the sum of the __________ of concentration terms of reactants in the rate law.

powers

The value of the order of reaction can be zero, positive, negative, or a __________.

fraction

Because it cannot be calculated theoretically, the order of reaction is an __________ parameter.

experimental

For a given hypothetical reaction $aA + bB \rightarrow cC + dD$, if the overall order of reaction is $3$, one possible rate law expression is $Rate = k[A]^2$ __________.

$$[B]^1$$