If the global pollution situation keeps worsening, one gallon of clean water can be more expensive than one gallon of petroleum. Scientists are looking for a way to synthesize water more efficiently. The following endothermic reaction was mentioned as a possible pathway
H2 (g) + O2 (g) ⇄ H2O (l)
Write down the expression of the equilibrium constant associated with this reaction at 536°C. List ALL the possible methods that can be used to shift the reaction to form more water at the same temperature.

Nickel metal can be used as a catalyst for the reaction of H2 and O2 as described in the previous question. Is nickel a homogeneous catalyst or a heterogeneous catalyst in this reaction? Describe the function of nickel as a catalyst in this reaction. What happens to the equilibrium constant if more nickel is added?

If 2.00 moles of H2 is used in the above reaction, and 58.7 mg of nickel is used as a catalyst, how much nickel in moles is left after 100 s of the reaction? Assume the reaction temperature remains constant at 536 ⁰C and the amount of O2 is in excess.