The equilbrium constant - Kp Flashcards
What is the equation for a gas equilibrium equation?
aA (g) + bB (g) = cC (g) + dD (g)
What is the expression for Kp?
Kp = p(C)^c x p(D)^d / p(A)^a x p(B)^b
What does p represent?
The partial pressure of the component at equilibrium
What is partial pressure?
The pressure entered by a gas in a mixture, if it alone occupied the whole container
What is total pressure?
The sum of partial pressures
What is the equation for moles fraction?
Mole fraction = moles of a given gas / total moles of all gases
What is the equation for partial pressure?
Partial pressure = mole fraction of gas x total pressure
How do you use an ICE table to work out Kp?
I = initial moles - write down initial moles of each reactant and product
C = change in moles - work our change by taking equilibrium moles from initial moles
E = equilibrium moles - write down equilibrium moles of each reactant and product
Then , work our moles faction at equilibrium and partial pressure, then input in Kp expression