Develop MATLAB programs that will solve the following problems.

1. A gaseous mixture is fed in a reactor at 80oC. It is burned with preheated air at 180oC. The gaseous mixture is 40% ethane, 30% propane, and 30% butane. Air is supplied at 150 % excess. If the combustion is complete, what is the heat associated with the chemical reaction in kJ if the product exits at 605oC? Assume that the reactor is at 1 bar and that water exits the reactor as gas. The answer must be fprintf.

2. Repeat no 1, except that the reactor is operated adiabatically. What is the adiabatic flame temperature in K? The answer must be fprintf.

3. Repeat no. 1 if the inlet pressure is 2.7 bar and exit pressure is 3.5 bar. The answer must be fprintf.