1. Decomposition of dimethyl ether: CH3OCH3→CH4 CO H2 quite satisfactorily follows the 1st order reaction equation.
Using the data below, calculate the rate constant of this reaction and determine the number of minutes after which the initial pressure in the system will double.
Time (sec) 0 219 299 564 
P, mm Hg 420 954 1054 1198 1258

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