Ethane, $C_2{H}_6,$ undergoes combustion at constant pressure with air for reactants at $25C.$

A$.$ For stoichiometric conditions at $1$ atm $,$ assuming no dissociation and constant specific heats, calculate the adiabatic flame temperature, $T_{ad}.($Do the calculation using the tables in the Appendices. Show all work$)$

B$.$ Using HPFLAME $($Appendix F$),$ for equivalence ratio's $=0\mathrm{.}75,1\mathrm{.}0,1\mathrm{.}25,$ and pressures of $1,10,$ and $100$ atm $.$

FIND:

$T_{ad},{}_{O_2},{}_{H_{2}O},{}_{C{O}_2},{}_{N_2},{}_{CO},{}_{H_2},{}_{OH},$ and ${}_{NO}$

C$.$ Compare the adiabatic flame temperature calculated in part A with that computed in part B$,$ and discuss the importance of dissociation and specific heat.

D$.$ Plot your results graphically, and in a table, and discuss the effects of equivalence ratio and pressure on $T_{ad}$ and the product mixture composition.