Question

In: Physics

Methane is mixed with pure oxygen at 20% excess over the stoichiometric requirement and undergoes combustion...

Methane is mixed with pure oxygen at 20% excess over the stoichiometric requirement and undergoes combustion in a burner operating at 2 bar. The inlet gases are at 40 °C and the effluent stream is at 1300 °C. Determine the amount of heat assuming complete oxidation of methane to carbon dioxide and water(gas). For simplicity, assume the heat capacities of the species to be constant and equal to the values given below (in J/mol K): CP,CH4 = 55.42, CP,O2 = 32.53, CP,N2 = 30.37, CP,CO2 = 48.65, CP,H2O = 36.94.

Solutions

Expert Solution


Related Solutions

Write the stoichiometric equations for the combustion of methane with oxygen to form (a) CO2 and...
Write the stoichiometric equations for the combustion of methane with oxygen to form (a) CO2 and H2O and (b) CO and H2O; and for the combustion of ethane with oxygen to form (c) CO2 and H2O and (d) CO and H2O. Then prove that only three of these four reactions are independent.
Acetylene (C2H2) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given (delta)H...
Acetylene (C2H2) undergoes combustion in excess oxygen to generate gaseous carbon dioxide and water. Given (delta)H degrees F[CO2(g)] = -393.5 kJ/mol, (delta)H degrees F[H2O(g)] = -241.8 kJ/mol, and (delta)H degrees F [C2H2(g)] = 226.6 kJ/mol, how much energy is released (kJ) when 10.5 moles of acetylene is burned? 2.5108 MJ 26.4 MJ 13.2 MJ 52.7 MJ 9.05 MJ options listed above
1. Methane and oxygen exist in a stoichiometric mixture at 500 kPa and 298 K. They...
1. Methane and oxygen exist in a stoichiometric mixture at 500 kPa and 298 K. They are ignited and react at constant volume. Combustion is complete. a. Find the heat removed from the system per kmol of fuel if the final products are at 1500 K. b. What is the final pressure? c. Explain what assumptions made in this calculation are less accurate for constant volume combustion than for the constant pressure combustion we have studied before. d. If the...
Methane is completely burned with 250% excess air during a steady flow combustion process. If the...
Methane is completely burned with 250% excess air during a steady flow combustion process. If the reactants and the products are kept at 25 ° C and 1 atmosphere and the water of the products exists in liquid form. Determined: to. The balanced equation b. Heat transfer (kJ / kmol) c. Adiabatic flame temperature (K)
4a. For the following reaction, 3.96 grams of carbon tetrachloride are mixed with excess methane (CH4)...
4a. For the following reaction, 3.96 grams of carbon tetrachloride are mixed with excess methane (CH4) . The reaction yields 3.67 grams of dichloromethane (CH2Cl2) . methane (CH4) ( g ) + carbon tetrachloride ( g ) -------> dichloromethane (CH2Cl2) ( g ) What is the theoretical yield of dichloromethane (CH2Cl2) ? _______ grams What is the percent yield for this reaction ? ________% 4b. For the following reaction, 5.03 grams of silver nitrate are mixed with excess copper(II) chloride....
A mixture of propane and butane is burned with pure oxygen. The combustion products contain 46.4...
A mixture of propane and butane is burned with pure oxygen. The combustion products contain 46.4 mole% H2O. After all the water is removed from the products, the residual gas contains 69.2 mole% CO2 and the balance O2. It now turns out that the fuel mixture may contain not only propane and butane but also other hydrocarbons. The fuel does not contain oxygen. However, the dry combustion gases still contain 69.2% carbon dioxide. We wish to determine the elemental composition...
A mixture of propane and butane is burned with pure oxygen. The combustion products contain 46.7...
A mixture of propane and butane is burned with pure oxygen. The combustion products contain 46.7 mole% H2O. After all the water is removed from the products, the residual gas contains 68.8 mole% CO2 and the balance O2 a. What is the mole percent of propane in the fuel? b. It now turns out that the fuel mixture may contain not only propane and butane but also other hydrocarbons. The fuel does not contain oxygen. However, the dry combustion gases...
16.05 g of methane (CH4) gas is mixed with 101.12 g of oxygen (O2) gas. The...
16.05 g of methane (CH4) gas is mixed with 101.12 g of oxygen (O2) gas. The mixture is ignited. After a bright flash and a loud bang, some water droplets form on the inside of the reaction vessel. A) Write the balanced chemical reaction for the combustion of methane . B) How many moles of water can you make? C) How many moles of CO2 can you make? D) Will anything be left over? What? Yes, there will be oxygen...
Calculate the work (in kJ) when 2.70 moles of methane react with excess oxygen at 364...
Calculate the work (in kJ) when 2.70 moles of methane react with excess oxygen at 364 K: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)
In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon...
In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l) ΔH = -890.0 kJ Calculate the value of q (kJ) in this exothermic reaction when 1.00 g of methane is combusted at constant pressure. a. -55.6 kJ b. -5.56 × 104kJ c. -0.0180 kJ d. 55.6 kJ e. 0.0180 kJ
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT