Question

The reaction CH3NC(g) -> CH3CN(g) is first-order with respect to methyl isocyanide, CH3NC. If it takes 10.3 minutes for exactly one quarter of the initial amount of methyl isocyanide to react, what is the rate constant in units of s–1?

Answer 1

first order equation, use \(\large [A_t]=[A_o]*e^{kt}\)

\([A_t]\)= concentration of CH3CN after t time elapsed
\([A_o]\)=initial concentraion
k=rate constant
t=time