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2 - (c) Air and an unknown amount of methane (CH) gas are fed to a combustion process. All the water produced during the process
2 - (c) Air and an unknown amount of methane (CH) gas are fed to a combustion process. All the water produced during the process was condensed and removed from the bottom of the combustion chamber. The exhaust gases, discharged of water, leave the top of the combustion process. An analysis of the exhaust gases gives 5 mol% 0,9 mol% CO2.0.5 mol% Co, and the remainder N2. Take 100 mol/min of exhaust gases as the dry basis. The following combustion reaction takes place: CH, +202 C0, +24,0 Udara dan suatu jumlah gas metana yang tidak diketahui dimasukkan ke dalam proses pembakaran. Kesemua air dihasilkan semasa proses pemeluwapan dan dibuang dari bawah kebuk pembakaran. Gas yang terhasil, air yang dibebaskan dikeluarkan melalui bahagian atas proses pembakaran. Satu analisis gas yang terhasil memberikan 5 mol% 02. 9 mol% CO2 0.5 mol% CO, dan bakinya adalah N2. Katakan 100 mol/min gas terhasil adalah basis kering. Berikut merupakan tindak balas pembakaran yang mengambil tempat: CH, + 20, - C, + 2H20 i) Draw and label the flowchart of the process with all known and unknown parameters, Lukis dan labelkan rajah alir proses tersebut dengan semua parameter yang diketahui dan tidak diketahui. [6 marks) [6 markah) ii) Calculate the percentage (%) of excess oxygen fed to this process. Kirakan peratus (%) oksigen lebihan yang masuk ke dalam proses ini. [6 marks) [6 markah) KLASANTUM SULIT O
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