For the reaction below, predict the shifts in equilibrium based on LeChatelier's Principle: heat + 2H2 (g) + O2 (g) → 2H2O (g)

Question

1.) ↑ [H_2]

2.) ↓ [H_2]

3.) ↑ temperature

4.) ↑ pressure

5.) ↓ pressure

6.) a catalyst is added

Answer 1

1. right, Increasing the concentration of a reactant favors the opposite side of reaction.
2. left
3. right, change in temperature favors the side that is opposite of dH
4. right, increasing the pressure favors the side with the less mols of gas
5. left, reducing the pressure favors the side with the most mols of gas.
6. Does not shift reaction, catalysts decrease the energy of activation. They do not favor reactants or products.

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