This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Ethane (C2H6) is burned with 20 percent excess air during a combustion process. Assume complete combustion and a total pressure of 180 kPa. Use data from the tables.

Thermodynamics

PARTS A & B ( Justify correctly) Gaseous ethane C2H6 is burned at constant pressure P = 1atm. The reagents enter the reaction at 25°C, and the products are at 727°C. Determine the heat released by the system for ethane combustion with PART (a) the theoretical stechiometric amount of oxygen PART (b) the theoretical amount of air (air contains 3.76 kmol of nitrogen per 1 kmol of oxygen). In which case is the heat released by the system larger? Explain .

4. Pentane (C;H12) is reacted with air in an equivalence ratio (1.333). Determine the percentage analysis of the products of combustion.

One mole of C3H8, is burned with an unknown amount of air during a combustion process. An analysis of the combustion products shows that the combustion is complete and there 3 moles of free O2, in the products. Determine; - a. the actual air-fuel ration b. the equivalence ratio c. the percentage of theoretical air used during this process.

Write the complete combustion reaction of fuel oil with atmospheric air. The fuel has the following mass composition: C = 85.5%, H = 10.6% and S = 3.9%. Calculate the content of CO₂ and SO₂ in volume, on a dry basis.

One mole of Carbon Dioxide burns completely in the presence of 3 moles of diatomic oxygen in a constant volume enclosure. The original temperature and pressure of the reactants are 25 C and 1 atm. A) If combustion takes place adiabatically calculate final temeprature and pressure of the products. B) If combustion does not take place adiabatically calculate the heat transfer per mole of CO when the products are cooled to a final temperature of 500K.

4.10- Methanol is burned in an engine with air at an equivalence ratio of $=0.75. Write the balanced chemical equation. Calculate air-fuel ratio сни тог

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Question No. 12: Methane CH4 is burned with stoichiometric amount of air during a combustion process. Assuming complete combustion, determine the air-fuel and fuel-air ratios.