Gas equilibria Flashcards
What is a partial pressure?
In a mixture of gases, each individual gas exerts its own pressure
What is the total pressure of a gas mixture?
the sum of all partial pressures
What is a mole fraction?
The proportion of a gas mixture that is made up of a particular gas
How do you calculate the mole fraction of a gas in a mixture?
Number of moles of gas / total number of moles of gas in the mixture
How do you calculate the partial pressure of gas in a mixture?
Mole fraction of gas x total pressure of the mixture
What is Kp?
The equilibrium constant for a reversible reaction where some, or all, of the reactants and products are gases
What is the general equation for Kp?
aA + bB -> dD + eE
(PA)a(PB)b
What will the units be for Kp?
kPa
How do you calculate the units for Kp?
Cancel the equation down
What brackets do you use in the equation for Kp?
( )
NOT [ ]
