Acetylene gas $($C$2$H$2)$ at $25C$ is burned during a steady$-$flow combustion process with $30$ percent excess air at $27C.$ It is observed that $75,000kJ$ of heat is being lost from the combustion chamber to the surroundings per kmol of acetylene. Assuming combustion is complete, determine the exit temperature of the product gases. Use data from the tables.

The exit temperature of the product gases is $$ K$.$