Consider the following reactions: CO (g) + H2O (g) <-> CO2 (g) + H2 (g)       |     Kp(1) = 0.694 at 1200.K C3H8 (g) + 3 H2O (g) <-> 3 CO (g) + 7 H2(g) | Kp(2) = 8.175 x 1015 at 1200.K Using the overall reaction from above and Le Chatelier’s principle, predict which direction the reaction will shift to reestablish equilibrium for each of the following changes: Carbon dioxide is increased. Propane is decreased. The reaction is placed in a dehydration chamber (which siphons off water). If the pressure in the reaction container is doubled.

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Chapter1: Chemical Foundations
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Consider the following reactions:

CO (g) + H2O (g) <-> CO2 (g) + H2 (g)       |     Kp(1) = 0.694 at 1200.K

C3H8 (g) + 3 H2O (g) <-> 3 CO (g) + 7 H2(g) | Kp(2) = 8.175 x 1015 at 1200.K

Using the overall reaction from above and Le Chatelier’s principle, predict which direction the reaction will shift to reestablish equilibrium for each of the following changes:

  • Carbon dioxide is increased.
  • Propane is decreased.
  • The reaction is placed in a dehydration chamber (which siphons off water).
  • If the pressure in the reaction container is doubled.
  • Calculate the enthalpy of reaction for this reaction using the standard thermodynamics values for the reactants and products. Is the reaction endothermic or exothermic?
  • Now, use Le Chatelier’s principle again to determine the direction the equilibrium will shift if heat is added to the reaction.
  • If 35 kPa of propane is mixed with 35 kPa of steam in a 1.5 L container at 1200. K, what is the theoretical yield of carbon dioxide?
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