3.1.10 Kp Flashcards
What is Kp? (2)
The equilibrium constant calculated from the partial pressures for a system at constant temperature
From the equation for a reversible reaction occurring in the gas phase
How is total pressure of a system calculated?
The sum of the partial pressures of a system
How is quantity related to partial pressure?
If gases are present in equal quantities, they have the same partial pressure
Define mole fraction
The proportion of a gas mixture that is made up of a particular gas
How is mole fraction calculated?
Number of moles of gas / total number of moles of gas in mixture
How is partial pressure calculated?
Mole fraction x total pressure of mixture
Why do catalysts have no effect on Kp?
They increase the rate of the forwards and backwards reactions equally so equilibrium will be reached faster but in the same position
