The data below were collected for the following reaction at 500 °C: CH, CN(9) + CH3NC(9) Time (h) [CH3CN] (M) 1.000 0.794 10.0 0.631 0.501 0.398 25.0 0.316 15.0 20.0

first order second order third order Submit Previous Answers ✓ Correct Part B Determine the value of the rate constant at this temperature. 190 A ¢ * * O O ? Submit Request Answer

Review l Constants Periodic Table Part What is the half-life for this reaction (at the initial concentration)? O A A O O ? t 1/2 = Submit Request Answer – Part D How long will it take for 88% of the CHCN to convert to CH3NC? VO AZ ? Submit Request Answer