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first-order decomposition of sulfuryl chloride

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The half-life for the first-order decomposition of sulfuryl chloride at 320 degrees Celsius is 8.75 h.
SO2Cl2 (g) -----> SO2 (g) + Cl2 (g)
(a) What is the value of the rate constant k, in s^-1?
(b) What is the pressure of sulfuryl chloride 2.52 h after the start of the reaction, if its initial pressure is 722 mmHg? (in mmHg)
(c) How long after the start of the reaction will it be before the pressure of sulfuryl chloride becomes 133 mmHg ? (in h)

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It shows how to find the rate of reaction for the first-order decomposition of sulfuryl chloride. It also calculates the pressure of SO2Cl2 during the process. The solution is detailed and has a rating of '5/5'.

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The half-life for the first-order decomposition of sulfuryl chloride at 320 degrees Celsius is 8.75 h.
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