A steady boundary layer flow over a porous flat plate has been considered in the present study. Mass transfer analysis with first order chemical reaction is also considered instead of heat transfer. The plate concentration is considered in the form of power law instead of taking constant. The governing PDEs are transformed into ordinary differential equations using similarity transformation and then these ODEs are solved by employing Runge-Kutta fourth order method associated with shooting technique. A parametric study of all involving parameters is obtained by the help of graphs. The major findings are: (i) the concentration of the fluid in its boundary layer decrease with increase in heavier species, the reaction rate parameter and the power law exponent; (ii) the rate of mass transfer increases with an increase in reaction rate parameter and power-law exponent.

在本研究中，已经考虑了在多孔平板上稳定的边界层流动。还考虑采用一级化学反应进行传质分析，而不是传热。板浓度以幂定律的形式考虑，而不是采用常数。使用相似变换将控制的PDE转换为常微分方程，然后使用与射击技术相关的Runge-Kutta四阶方法求解这些ODE。通过图形可以对所有涉及的参数进行参数研究。主要发现是：（i）边界层中流体的浓度随重物种，反应速率参数和幂律指数的增加而降低；