Gibbs Free Energy & the Equilibrium Constant Gibbs Free Energy & the Equilibrium Constant The equilibrium constant, Kc, gives no information about the individual rates of reaction It is ind...
Explaining Le Châtelier’s Principle Le Châtelier's principle Le Châtelier's principle says that if a change is made to a system at dynamic equilibrium, the position of the equilibrium moves to mini...
Activation Energy from Rate Constants at Different Temperatures Arrhenius Plots Arrhenius plots for two reactions with different activation energies can be drawn on the same graph Arrhenius plots f...
Graphing the Arrhenius Equation Finding the Activation Energy Very often, the Arrhenius equation is used to calculate the activation energy of a reaction A question will either give sufficient info...
The Arrhenius Equation The rate equation shows how each of the reactants in a reaction effects the rate of the reaction and it includes the rate constant, k However, k only remains constant if the ...
Mechanism Problems Chemical kinetics can only suggest a reaction mechanism, they cannot prove it However, they can be used to disprove a proposed mechanism Elementary steps are the steps involved i...
Molecularity & Rate Determining Step Rate-determining step & intermediates A chemical reaction can only go as fast as the slowest part of the reaction So, the rate-determining step is the s...
Graphical Representations of Reaction Order Reaction Order Using Concentration-Time Graphs In a zero-order reaction, the concentration of the reactant is inversely proportional to time This means t...
Rate Constants The rate constant, (k), of a reaction can be calculated using the initial rates and the rate equation Calculating the rate constant from the initial rate The reaction of sodium carbo...
