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Water decomposes at 2300 K H2O(g) → H2(g) + 1/2 O2(g) The percent of water decomposing at 2300 K and 1 bar is ________ (Nearest integer). Equilibrium constant for the reaction is 2 × 10^-3 at 2300 K.

1. [02]
2. [03]
3. [04]
4. [05]

Correct answer: [02]

Solution

The equilibrium constant indicates that at 2300 K, the concentration of products (H2 and O2) is significantly lower than that of reactants (H2O), leading to a small percentage of water decomposing. Given the equilibrium constant of 2 × 10^-3, this corresponds to approximately 2% of water decomposing, making option A the correct choice.

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