Rate Equations and Kp Flashcards
Order of reaction
The power to which the concentration of its reactant is raised in the rate equation
Order of reaction is 0
If A changes and the rate stays the same, the order of reaction with respect to A is 0
Order of reaction is 1
If the rate is proportional to A, then the order of reaction with respect to A is 1
Order of Reaction is 2
If the rate is proportional to A squared, then the order of reaction with respect to A is 2
Rate determining step
What does this also decide?
The step with the slowest rate
The overall rate
What do the order of a reaction tell you about the rate determining step?
The orders of the reaction tell you how many molecules of each reactant are in the rate determining step
Total pressure of a gas mixture
Equal to the sum of all the partial pressures of the individual gases
Mole fraction of a gas in a mixture
Number of moles of gas -:- total number of moles of gas in the mixture
Partial pressure of a gas
Mole fraction of gas x Total pressure of the mixture
Effect of changing pressure on Kp
Changing pressure doesn’t affect Kp (just like changing concentration doesn’t change Kc)
Effect of a catalyst on Kp
Adding a catalyst won’t affect Kp (like Kc)- it just gets the system to equilibrium more quickly
Partial pressure of a gas
The pressure that an individual gas in a mixture exerts on a system
