The theory of Mallard and Le Chatelier predicts the laminar flame speed
as:
S_(L)=\alpha (T_(f)-T_(i))/(T_(i)-T_(o))*(1)/(\delta _(r))
where \delta _(r) represents the thickness of the reaction zone between the ignition temperature T_(i) and
the flame temperature T_(f). Evaluate the characteristic value of T_(i) for a laminar flame propagating
in stoichiometric methan(e)/(a)ir mixture initially at P=(1)/(b)ar and T_(o)=300K if the measured value
of \delta _(r) is 0.1 mm , the laminar flame speed is 35c(m)/(s), and the thermal diffusivity of the mixture
could be approximated as the thermal diffusivity of air at 1000\deg C. Discuss your result.