In a global, single-step mechanism for butane combustion, the reaction order with respect to butane is 0.15 and with respect to oxygen is 1.6. The rate coeflicient can be expressed in Arrhenius form: the pre-exponential factor is 4.16 10 [(kmol/m')-0.75/s) and the activation energy is 125,000 kJ/kmol. Write out an expression for the rate of butane destruction, d[C,H10]/dr.