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

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 600.mmHg of pure SO₂Cl₂ is placed 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