The following the gas-phase equilibrium system represented by the equation below is endothermic in a forward reaction: 2H2O(g) 2H2(g ) + O2(g) According to Le Chatelier's principle, which of the following changes will decrease the equilibrium amount of H2O? a. adding more oxygen b. adding a solid phase catalyst C. decreasing the volume of the container d. increasing the temperature at constant pressure e. adding H2 gas

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