For the gas phase decomposition of chloroethane,

CH3CH2Cl—->C2H4 + HCl

the rate constant in s-1 has been determined at several temperatures. When ln k is plotted against the reciprocal of the Kelvin temperature, the resulting linear plot has a slope of -3.06×104 K and a y-intercept of 33.6. 

The value of the rate constant for the gas phase decomposition of chloroethane at 722 K is_______________  s-1. (Enter your answer to one significant figure.)

For the