A rigid stainless steel chamber contains 210 Torr of methane, CH4, and excess oxygen, O2, at...

A rigid stainless steel chamber contains 210 Torr of methane, CH4, and excess oxygen, O2, at 200.0

Solutions

Expert Solution

CH4 + 2O2 ---> CO2 + 2H2O

CH4 + 2O2 = CO2 + 2H2O

So 1 volume of CH4 + 2 volumes of O2 yields 1 volume of CO2 + 2 volumes of H2O

210 torr of CH4 pressure means at least 420 torr of O2 pressure. Since it is excess, let us call the O2 pressure 420 + x.

Let us consider the CH4 to CO2 molar ratio of 1 to 1. Since this happens at constant volume and constant temperature, the pressures are directly related to the moles used and produced. Thus, we conclude 210 torr of CO2 pressure is produced.

Since we are at 200 C, the water produced is gaseous. Let us consider the CH4 to H2O molar ratio of 1 to 2. This informs us that 420 torr of water vapor pressure is created.

Since O2 is in excess, we know that x remains after 420 torr of O2 is used up. I know 420 torr of O2 is used because of the CH4 to O2 molar ratio in the balanced equation.

I think the water will remain as vapor given that the normal boiling point of water is 100 C at 760 torr.

Conclusion: no pressure change in the chamber at reaction's end.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

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...

Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and...

Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 0.32 g of methane is mixed with 0.909 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction.

Methane gas (CH4) is burned in a combustor with a given percentage of excess air. The...

Methane gas (CH4) is burned in a combustor with a given percentage of excess air. The pressure and temperature of both the air and fuel are 101 kPa and 298 K respectively. Assume that the mole fractions are 79% nitrogen and 21 % oxygen for air (use M=28.97 kg/kmol and R=0.287 kJ/kg-K) and that water is a vapor in the exhaust. Given the values below, determine the following: --Given Values-- m_fuel (kg) = 100 Excess Air = 25% a) Determine...

Methane gas (CH4) at -10°C is burned with pure O2 at 5°C. The O2 is fed...

Methane gas (CH4) at -10°C is burned with pure O2 at 5°C. The O2 is fed at a mol ratio of 1.8:1 relative to CH4. The flue gases leave at 90°C. All compounds exit in the gas phase. Assume the system is at steady state and no work is done. DHo f, CH4, gas = -74.84 kJ/mol Cp (for all gases and vapors): 30 J/mol.K DHo f, CO2, gas = -393.51 kJ/mol DHo f, H2O, gas = -241.83 kJ/mol a)...

Methane (CH4) gas flows into a combustion chamber at a rate of 200 L/min at 1.50...

Methane (CH4) gas flows into a combustion chamber at a rate of 200 L/min at 1.50 atm and ambient temperature. Air is added to the chamber at 1.00 atm and the same temperature, and the gases are ignited. a. To ensure complete combustion of CH4 to CO2(g) and H2O(g), three times as much oxygen as is necessary is reacted. Assuming air is 21 mole percent O2 and 79 mole percent N2, calculate the flow rate of air necessary to deliver...

Methanol (CH3OH) is produced via the partial oxidization of methane (CH4). The fresh feed contains methane...

Methanol (CH3OH) is produced via the partial oxidization of methane (CH4). The fresh feed contains methane and oxygen that have been mixed in stoichiometric proportions. This feed is mixed with recycle gases. The single-pass conversion of methane is 10.0%. The stream leaving the reactor is passed into a separation process where the entire methanol, and none of the other materials, is removed. All of the remaining materials are recycled to be mixed with the fresh feed. Determine the feed rate...

methane gas CH4 enters a steady flow combustion chamber at 25 oC and 1 atm and...

methane gas CH4 enters a steady flow combustion chamber at 25 oC and 1 atm and is burned with 40 percent excess air, which also enters at 25 oC and 1 atm. After combustion, the products are allowed to cool to 25 oC. Assume complete combustion, determine the heat transfer per kmol of CH4

When 5.000 grams of ammonia react with an excess of oxygen and CH4 in a bomb...

When 5.000 grams of ammonia react with an excess of oxygen and CH4 in a bomb calorimeter with a total heat capacity of 15.48 kJ/°C, the temperature of the calorimeter and its contents changes from 19.77°C to 33.90°C. Calculate ∆E and ∆H for the following reaction as written: 2 NH3 (g) + 3 O2 (g) + 2 CH4 (g) → 2 HCN (g) + 6 H2O (l) ∆E = ? ∆H = ? 2. Given the following reaction: Zn (s)...

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....

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The...

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is CH4(g)+O2(g) → CO2(g)+H2O(g) This type of reaction is referred to as a complete combustion reaction. B. What mass of carbon dioxide is produced from the complete combustion of 5.00×10−3 (g) of methane? w/ units. C. What mass of water is produced from the complete combustion of 5.00×10−3 g of methane? w/ units. D. What mass of oxygen is...

Subjects