Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. CH4 +02 - HCHO + H20 CH4+202 - CO2 + 2H20 The feed to the reactor contains equimolar amounts of methane and oxygen. Assume a basis of 100.0 mol feed/s. a. How many degrees of freedom remain for the overall process? b. The fractional conversion of methane is 0.900 and the fractional yield of formaldehyde is 0.870 mol HCHO/mol CHa fed. What is the composition of the output stream? mol% O2 mol% HCHO mol% H20 mol% CO2 mol% CH4 c. What is the selectivity (mol HCHO/mol CO2) of the process? mol HCHO/mol CO2