Chemical equilibrium

• What is the formula of gibbs at equilibrium?

  ΔG = ΔG0 + RTlnQ
• What conditions are achieved by different K's?

  K>1 more products produced (spontaneous)

  
  

  K = 1 spontaneous

  
  

  K<1 more reactants (non spontaneous)
• What occurs to K when pressure is increased?

  Increase in pressure will shift to side with least moles
• What occurs to K when temperature is increased?

  If endothermic will shift to side with products.

  
  

  If exothermic will shift to side with reactants
• What is the Vant hoff equation?

  ln(k2/k1) = -ΔH/R (1/T2 -1/T1)
• What is the effect of catalysts on equilibrium?

  Speed up reaction but doesn't alter energy or K (will reach equilibrium faster)
• What is the biological standard state?

  C = 10^-7
• What is the gibbs formula for the biological standard state?

  ΔG+ = ΔG0 + 7nRTln10 (This is for when products are favoured)

  
  

  ΔG+ = ΔG0 - 7nRTln10 (this is for when reactants are favored)
• What is the Henderson-Hasselbalch equation?

  pH = pka - log (HA)/(A)
• What is the double reciprocal plot?

  1/f = 1+ kd/L
• What is the scatchard's plot?

  F/l = n/Kd -F/kd