For the gas phase decomposition of chloroethane

Question

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 gas phase decomposition of chloroethane,

CH₃CH₂Cl---->C₂H₄ + HCl

the rate constant has been determined at several temperatures. When ln k in s^-1 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 activation energy for the gas phase decomposition of chloroethane is  _____________kJ/mol.