The First-Order Decomposition of SO₂Cl₂ to Sulfur Dioxide Gas and Chlorine

question 13

Multiple Choice

The first-order decomposition of SO₂Cl₂ to sulfur dioxide gas and chlorine gas at 320°C has a half-life of 8.75 hr. If one begins with 600.mmHg of pure SO₂Cl₂ in a 5.00-L flask at 320°C, how long does it take for the total pressure in the flask to rise to 1.000 atm?

• A)6.45 hr
• B)11.1 hr
• C)3.91 hr
• D)20.3 hr
• E)6.91 hr

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