Nitrosyl Chloride (NOCl) Decomposes at Elevated Temperatures According to the Equation

question 23

Multiple Choice

Nitrosyl chloride (NOCl) decomposes at elevated temperatures according to the equation 2NOCl(g) 2NO(g) + Cl₂(g) . What is K_P for this reaction at 227°C?
For this reaction ΔH° = 81.2 kJ/mol and ΔS° = 128 J/K • mol. (R = 8.314 J/K • mol)

• A) 1.60 × 10^-2
• B) 2.10 × 10^-7
• C) 62.8
• D) 4.90 × 10⁶
• E) 3.20 × 10⁹

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