Phosgene breaks down when heated: COCl₂(g) ⇌ CO(g) + Cl₂(g), with Kp = 0.25 bar at 725 K. Pure phosgene is heated to 725 K and comes to equilibrium. All the gases are ideal. Which of the following statements are correct?

ChemistryAdvancedHigh School (11–12)Chemical Reactions JEE Advanced

Phosgene breaks down when heated: $\text{COCl}_2(g) \rightleftharpoons \text{CO}(g) + \text{Cl}_2(g)$ , with $K_p = 0.25\ \text{bar}$ at $725\ \text{K}$ . Pure phosgene is heated to $725\ \text{K}$ and comes to equilibrium. All the gases are ideal. Which of the following statements are correct?

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← Hydrochloric acid is diluted with pure water until its concentration is 5.0 × 10⁻⁸ mol L⁻¹. What is the pH of this solution at 298 K? Take Kw = 1.0 × 10⁻¹⁴ at 298 K, and remember that water itself ionises.A 20.0 mL sample of 0.10 mol L⁻¹ aqueous ammonia is titrated with 0.10 mol L⁻¹ hydrochloric acid at 298 K. Take pKb(NH₃) = 4.74 and Kw = 1.0 × 10⁻¹⁴, and assume that the volumes add. Which of the following statements are correct? →

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