Maximum Useful Work from a Fuel Cell. What is the maximum useful work which can be...
Maximum Useful Work from a Fuel Cell.
What is the maximum useful work which can be obtained from a hydrogen-oxygen fuel cell that produces 1.60 kg of water at 25°C?
(Assume 1 atm pressure for the gases.)
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Maximum Useful Work from a Fuel Cell.
What is the maximum useful work which can be...
Please help me answer this with proper explanations. Thanks Maximum Useful Work from a Fuel Cell. What is the maximum us...
Please help me answer this with proper explanations.
Thanks
Maximum Useful Work from a Fuel Cell. What is the maximum useful work which can be obtained from a hydrogen-oxygen fuel cell that produces 1.69 kg of water at 25°C? (Assume 1 atm pressure for the gases.)
Please show all work step by step and final answer. Maximum Useful Work from a Fuel...
Please show all work step by step and final answer.
Maximum Useful Work from a Fuel Cell. What is the maximum useful work which can be obtained from a hydrogen-oxygen fuel cell that produces 1.15 kg of water at 25°C? (Assume 1 atm pressure for the gases.) Submit Answer Tries 0/5
Hydrogen (H) and oxygen (O.) are reacted in a fuel cell to produce energy. The product...
Hydrogen (H) and oxygen (O.) are reacted in a fuel cell to produce energy. The product of the reaction is water, and any excess gases are vented after the fuel cell, as shown in the figure below. The hydrogen and oxygen tanks are maintained at the same temperature and pressure, and they feed at the same volumetric flow rate. The reaction goes to 60% completion in the fuel cell (hydrogen basis) If all of the unreacted hydrogen and a portion...
The hydrogen-oxygen fuel cell is described in the text. For the questions below, assume the following:...
The hydrogen-oxygen fuel cell is described in the text. For the questions below, assume the following: Assume that the air is 20 % O2 by volume and that all the O2 is consumed in the cell. The other components of air do not affect the fuel-cell reactions. Assume ideal gas behavior. (a) What volume of H2(g), stored at 25.0°C at a pressure of 141 atm, would be needed to run an electric motor drawing a current of 8.50 A for...
A fuel cell is an electrochemical device that reacts hydrogen with oxygen from the air to...
A fuel cell is an electrochemical device that reacts hydrogen with oxygen from the air to produce water and DC electricity. A proposed application is replacement of the gasoline-fueled internal combustion engine in an automobile with a 100 kW fuel cell. You are on a summer internship with a gas supplier planning to transport hydrogen to service stations for the use in cars powered by fuel cells. The hydrogen is to be transported in tube trailers, each of which has...
Faraday’s Law 1. Hydrogen fuel cells are based on the reaction of hydrogen and oxygen to...
Faraday’s Law 1. Hydrogen fuel cells are based on the reaction of hydrogen and oxygen to form water: 2H 2 (g) + O 2 (g) ? 2H 2O (l) In the presence of excess oxygen, a hydrogen fuel cell consumes 0.370 grams of hydrogen per hour at 25°C. Calculate the maximum current that can be produced by this fuel cell. 2. Aluminum is produced by the electrolytic reduction of alumina, Al 2O 3. The overall cell reaction can be written...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a proton-exchange fuel cell that uses methanol CH OH() as the fuel, which reacts with molecular oxygen to produce carbon dioxide and water. (a) (4 pts) Write the balanced combustion reaction for this methanol fuel cell (b) (4 pts) Write the balanced half-reactions occurring at the cathode and anode of this fuel cell (assume standard acidic conditions). (c) (4 pts) Evaluate AG° (kJ) and AE...
(1) About a hydrogen fuel cell, (a) The fuel is hydrogen. (b) There is an oxidation...
(1) About a hydrogen fuel cell, (a) The fuel is hydrogen. (b) There is an oxidation reaction on the surface of the anode. (c) The current flows from the anode to the cathode through the external circuit. (d) There is an oxidation on the surface of the cathode. (2) A fuel cell includes: (a) An anode and a cathode (b) A layer of electrolyte (c) Two resistors (d) one capacitor (3) About a bipolar plate, (a) It is used in...
Fuel cells can be powered by the reaction between formic acid and oxygen as following As...
Fuel cells can be powered by the reaction between formic acid and oxygen as following As formic acid and oxygen react together inside the fuel cell, it produced both electrical power and heat. While there is no shaft work produced by the fuel cells, this electrical power produced by the fuel cells can be considered as the shaft work term when you perform the energy balance. A fuel cell is being supplied with 100. liters per minute of pure formic...
using heat of formation. Fuel cells can be powered by the reaction between formic acid and...
using heat of formation.
Fuel cells can be powered by the reaction between formic acid and oxygen as following HCOOH + 12 02 → CO2 + H2O As formic acid and oxygen react together inside the fuel cell, it produced both electrical power and heat. While there is no shaft work produced by the fuel cells, this electrical power produced by the fuel cells can be considered as the shaft work term when you perform the energy balance. A fuel...
Please help me answer this with proper explanations.
Thanks
Maximum Useful Work from a Fuel Cell. What is the maximum useful work which can be obtained from a hydrogen-oxygen fuel cell that produces 1.69 kg of water at 25°C? (Assume 1 atm pressure for the gases.)
Please show all work step by step and final answer.
Maximum Useful Work from a Fuel Cell. What is the maximum useful work which can be obtained from a hydrogen-oxygen fuel cell that produces 1.15 kg of water at 25°C? (Assume 1 atm pressure for the gases.) Submit Answer Tries 0/5
Hydrogen (H) and oxygen (O.) are reacted in a fuel cell to produce energy. The product of the reaction is water, and any excess gases are vented after the fuel cell, as shown in the figure below. The hydrogen and oxygen tanks are maintained at the same temperature and pressure, and they feed at the same volumetric flow rate. The reaction goes to 60% completion in the fuel cell (hydrogen basis) If all of the unreacted hydrogen and a portion...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a proton-exchange fuel cell that uses methanol CH OH() as the fuel, which reacts with molecular oxygen to produce carbon dioxide and water. (a) (4 pts) Write the balanced combustion reaction for this methanol fuel cell (b) (4 pts) Write the balanced half-reactions occurring at the cathode and anode of this fuel cell (assume standard acidic conditions). (c) (4 pts) Evaluate AG° (kJ) and AE...
using heat of formation.
Fuel cells can be powered by the reaction between formic acid and oxygen as following HCOOH + 12 02 → CO2 + H2O As formic acid and oxygen react together inside the fuel cell, it produced both electrical power and heat. While there is no shaft work produced by the fuel cells, this electrical power produced by the fuel cells can be considered as the shaft work term when you perform the energy balance. A fuel...
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