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9 Cards in this Set

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  • Back
What affects the rates of reactions?
1. nature of reactants
2. concentration of reactants
3. temperature
4. presence of a catalyst
What is the difference between kinetics and thermodynamics?
thermo- deals with final and initial states, compares free energy of reactants and products, ideal case assumes everything can find its lowest energy state
Kinetics- deals with pathway between, how long does it take to convert reactants to products
Using the equation H2 + O2 →2H2O and assuming the rate of consumption of H2 is x, what is the rate of consumption of O2 and the rate of production of H2O in terms of x?
x = 1/2x = x
What is reaction rate?
change in concentration/time
When using the concentration of reactants and products table as a function of time of the reaction do the times need to be close together?
yes they do
Do rate constant and rate change with concentration?
No rate changes, but rate constant doesn't.
What 3 things are included in a rate expression?
rate constant, reaction order, concentration
^rate law only includes reactants
True
What is the Arrhenius Law?
k = A e^-Ea/RT