The answer is 6.165 kPa, please try to find the answer and give the answer in a clear and organized way. I would greatly appreciate it if the solution wasn't written in text but handwritten and taken a photo of because when its written in text its always so hard to follow. Thanks for your time.

At low pressure and elevated temperature, ethane gas (C2H6) dehydrogenates to ethylene (C2H4) and hydrogen according to the reaction C2H6(g)C2H4(g)+H2(g) If the equilibrium constant K is 0.04053 at 900K, calculate the partial pressure of ethylene at this temperature if a mixture of ethane (800mol) and inert nitrogen gas (3000mol) is passed over a catalyst that allows the reaction to attain equilibrium. The total pressure on the system is constant at 80.0kPa