CH3NC isomerizes when heated to give acetonitrile CH3CN. the reaction is first order. At 230C, the rate constant for the isomerization is 6.3x10^(-4)/s.
CH2NC(g)->CH3CN
a) Whats is the half-life?
b) How long would it take for the concentration of CH3NC to decrease to 25.0% of its initial value?