A leaf has a boundary layer resistance for heat transfer $($both surfaces in parallel$)$ of $40s{m}^{-1},$ and a

combined stomatal and boundary layer resistance of $110s{m}^{-1}.$ Taking air temperature as $22C$ and

vapor pressure as $1\mathrm{.}0$ kPa $,$ set up a spreadsheet model to calculate the rates of sensible and latent

heat transfer, and total heat $($sum of sensible and latent$)$ as a function of leaf temperature over the

range of $20-26C.$ Find graphically the leaf temperature when the net radiation absorption by the

leaf is $300\frac{W}{m}.$ State all your assumptions.