Acetylene is produced from methane via the following reaction: $2$CH$\_\{4\}->$ C$\_\{2\}$H$\_\{2\}+3$H$\_\{2\}$ An undesired side reaction occurs in which the products react to form ethylene: C$\_\{2\}$H$\_\{2\}+$ H$\_\{2\}->$ C$\_\{2\}$H$\_\{4\}$ In a system where the conversion of methane is $72\%$ and the fractional yield of acetylene $($ based on methane reacted$)$ is $0\mathrm{.}64,$ find the mole fraction of hydrogen in the product stream $.$ the answer is $60\%!!!$ this is the third time ive submitted this please help!