x
No description yet. This curated deck is ready for daily study.
Card preview (9)
homogeneous equilibrium definition
all the species in same state or phase
heterogeneous equilibrium definition
species have different state or phase
calculate the equilibrium quantities of 2NO(g) + O₂(g) -> 2NO₂(g) 1.60mol NO(g) and 1.40mol O₂(g) are mixed together in a container with a volume 4.0dm³. At equilibrium, 1.20mol NO₂(g) has formed. Find Kc.
2 mol 1 mol 2 mol 1.60 1.40 0 -1.20 -0.6 +1.20 0.40 0.80 1.20 [NO(g)]= 0.4/4=0.1 moldm⁻³ [O₂(g)]=0.8/4=0.2 moldm⁻³ [NO₂(g)]= 1.2/4=0.3 moldm⁻³ Kc = (0.3)²/(0.1)²X0.2= 45dm³mol⁻¹
write the equation for the mole fraction x(A)
number of moles of A/ total number of moles in gas mixture
what is the sum of mole fractions?
1
partial pressure p(A) equation
mol fraction of A x total pressure P x(A) x P
what does the sum of partial pressures equal
total pressure
partial pressure for H₂(g) + I₂(g) ⇄ 2HI(g)
Kp= p(HI)²/ p(H₂)/p(I₂)
what must be ignored in a Kp expression
species other than gases as only gases have partial pressures