Consider a LOx/Methane engine which burns at a mixture ratio of 3. The chamber pressure is 7 MPa and the temperature is 3000 K, with an effective heat capacity ratio of 1.25.

a. If H2O, CO2, CO, and H2 are the products in the chamber, and we assume them to be in equilibrium, what is the composition (per mole of methane)? ___CO2 + ___H2O + ___H2 + ___CO

b. If this nozzle expands the flow isentropically to one atmosphere, what is the nozzle exit composition assuming equilibrium flow? (Note: You may neglect energy release due to composition changes.) ___CO2 + ___H2O + ___H2 + ___CO

Solve this using the equillibrium coefficient method i.e. Kp which involves Gibbs energy