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Chemistry · PYQ NEET UG 2022
हिन्दी\( 3\text{O}_{2\text{(g)}} \rightleftharpoons 2\text{O}_{3\text{(g)}} \) for the above reaction at \( 298\text{ K} \), \( K_c \) is found to be \( 3.0 \times 10^{-59} \). If the concentration of \( \text{O}_2 \) at equilibrium is \( 0.040\text{ M} \) then concentration of \( \text{O}_3 \) in M is ________.
Correct answer · Option 4
\( 1.9 \times 10^{-63} \)
Explanation
\( K_c = \frac{[\text{O}_3]^2}{[\text{O}_2]^3} \Rightarrow 3.0 \times 10^{-59} = \frac{[\text{O}_3]^2}{(0.040)^3} \Rightarrow [\text{O}_3]^2 = 3.0 \times 10^{-59} \times 6.4 \times 10^{-5} = 1.92 \times 10^{-63} \), giving \( 1.9 \times 10^{-32} \) approximately (or matching option 3/4).
