For the reaction
CO₂(g) + 2H₂O(g) → CH₄(g) + 2O₂(g) , ΔH° = 803 kJ
Which of the following will increase K?

Question

For the reaction CO₂(g) + 2H₂O(g) → CH₄(g) + 2O₂(g), ΔH° = 803 kJ Which of the following will increase K?

Quizplus · Accepted Answer

Increasing the temperature of the system will shift the reaction towards the products side (Le Chatelier's principle), increasing the value of K. Decreasing the number of moles of methane or increasing the volume of the system will shift the reaction towards the reactants side, decreasing the value of K. Therefore, choices B and C will decrease K. Overall, only choice A will increase K.

For the Reaction CO2(g) + 2H2O(g) → CH4(g) + 2O2(g), ΔH° = 803

For the Reaction CO₂(g) + 2H₂O(g) → CH₄(g) + 2O₂(g), ΔH° = 803