Question 6: a) A potential reaction being investigated for the generation of energy is the combustion...
Question 6:
a) A potential reaction being investigated for the generation of energy is the combustion of hydrogen. In a hydrogen fuel-cell the hydrogen reacts with oxygen to produce water while giving large amounts of energy. Use your knowledge of naming compounds to write the reaction. 3 marks
b) Give a balanced reaction. 1 mark
c) If a fuel-cell can only hold 120g of hydrogen how much water will be produced? 5 marks
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Question 6:
a) A potential reaction being investigated for the generation of
energy is the combustion...
QUESTION A combustion reaction occurs when a fuel source reacts with oxygen (O) to form carbon...
QUESTION A combustion reaction occurs when a fuel source reacts with oxygen (O) to form carbon dioxide (CO) and water (HO). Combustion reactions are frequently thought of as burning a fuel source. The fuel source is typically made of carbon and hydrogen or carbon, hydrogen, and oxygen. What is the missing equation coefficient that belongs in front of carbon dioxide (CO) in the combustion reaction for hexane, CH? CH (1) + 9 O(0) - CO, () + 6 H O(0)
In a hydrogen fuel cell, oxygen and hydrogen are combincd to produce water and a small potential differ- ence. The steps of the chemical reaction are: at-electrode: at + electrode: H2 + 20H-→ 2H2O +...
In a hydrogen fuel cell, oxygen and hydrogen are combincd to produce water and a small potential differ- ence. The steps of the chemical reaction are: at-electrode: at + electrode: H2 + 20H-→ 2H2O + 2e-; O2 + H2O + 2e-→ 2OH-, Use the table of chemical values to calculate a) the work that can be produced from this fuel cell, b) the 'waste' heat produced during standard operation, c) the voltage of the cell, and d) the minimum voltage...
(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 CH3OH) 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) (e) (4 pts) Evaluate AGº (kJ) and AE° (V)...
(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...
pre lab- heat of combustion (1-3D) Experiment 10 HEAT OF COMBUSTION Pre-Lab 1. The Law of...
pre lab- heat of combustion (1-3D)
Experiment 10 HEAT OF COMBUSTION Pre-Lab 1. The Law of Conservation of Energy can be applied to combustion processes where fuel + oxygen products + energy The total chemical energy associated with the reactants must be the same as the total chemical energy of the products when the heat of combustion is included. a) Underline the graph which best represents the relationship between the stored chemical energy of the reactants and products in a...
MHE Reader Propane, C3Hs(&), reacts with oxygen gas to produce carbon dioxide gas and water vapor....
MHE Reader Propane, C3Hs(&), reacts with oxygen gas to produce carbon dioxide gas and water vapor. a) b) 2. Write a balanced equation including states of matter for the reaction. If 4.55 g of propane reacts with excess oxygen under standard conditions, calculate the theoretical yields (in grams) for both carbon dioxide and water, and · the total amount of heat released/absorbed when the reaction is complete. c) Ethanol is currently being used as a replenishable fuel alternative/supplement because it...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
Name: Biology, Mr. Spaeth 609-682-1494 Read This! Date: Period: 12 4 9 10 Glucose, or any...
Name: Biology, Mr. Spaeth 609-682-1494 Read This! Date: Period: 12 4 9 10 Glucose, or any carbon-based molecule, can be burned in oxygen (oxidized) to produce carbon dioxide and water Combustion reactions release large amounts of energy. However, the energy release is uncontrolled. An organism would not be able to handle all that energy at once to do the work of the cell. Cellular respiration is essentially the same reaction as combustion, but the oxidation of glucose occurs in several...
Only need question C answered Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transpor...
Only need question C answered
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines....
Please summarise below in a concise way. Alternative energy is studied as a result of the increas...
Please summarise below in a concise way. Alternative energy is studied as a result of the increasing costs of energy, the harm that fossil fuel may be costing the planet and the fact the energy demand is going up and the supply of fossil fuels may be going down. Energy and economic growth have always been going up, the more energy we consume, the more wealth we create as seen in the GDP of developed nations such as the USA,...
QUESTION A combustion reaction occurs when a fuel source reacts with oxygen (O) to form carbon dioxide (CO) and water (HO). Combustion reactions are frequently thought of as burning a fuel source. The fuel source is typically made of carbon and hydrogen or carbon, hydrogen, and oxygen. What is the missing equation coefficient that belongs in front of carbon dioxide (CO) in the combustion reaction for hexane, CH? CH (1) + 9 O(0) - CO, () + 6 H O(0)
In a hydrogen fuel cell, oxygen and hydrogen are combincd to produce water and a small potential differ- ence. The steps of the chemical reaction are: at-electrode: at + electrode: H2 + 20H-→ 2H2O + 2e-; O2 + H2O + 2e-→ 2OH-, Use the table of chemical values to calculate a) the work that can be produced from this fuel cell, b) the 'waste' heat produced during standard operation, c) the voltage of the cell, and d) the minimum voltage...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a proton-exchange fuel cell that uses methanol CH3OH) 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) (e) (4 pts) Evaluate AGº (kJ) and AE° (V)...
(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...
pre lab- heat of combustion (1-3D)
Experiment 10 HEAT OF COMBUSTION Pre-Lab 1. The Law of Conservation of Energy can be applied to combustion processes where fuel + oxygen products + energy The total chemical energy associated with the reactants must be the same as the total chemical energy of the products when the heat of combustion is included. a) Underline the graph which best represents the relationship between the stored chemical energy of the reactants and products in a...
MHE Reader Propane, C3Hs(&), reacts with oxygen gas to produce carbon dioxide gas and water vapor. a) b) 2. Write a balanced equation including states of matter for the reaction. If 4.55 g of propane reacts with excess oxygen under standard conditions, calculate the theoretical yields (in grams) for both carbon dioxide and water, and · the total amount of heat released/absorbed when the reaction is complete. c) Ethanol is currently being used as a replenishable fuel alternative/supplement because it...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
Name: Biology, Mr. Spaeth 609-682-1494 Read This! Date: Period: 12 4 9 10 Glucose, or any carbon-based molecule, can be burned in oxygen (oxidized) to produce carbon dioxide and water Combustion reactions release large amounts of energy. However, the energy release is uncontrolled. An organism would not be able to handle all that energy at once to do the work of the cell. Cellular respiration is essentially the same reaction as combustion, but the oxidation of glucose occurs in several...
Only need question C answered
Problem 3 (5 marks): The advantage of fossil fuels is that a lot of energy can be transported in a small amount of mass. The disadvantage is that their combustion produces CO2 (a greenhouse gas). a) Calculate how much energy is recoverable by the combustion of 1 g of octane. In a hydrogen-based economy, H2 could be produced collected and compressed so that it could be transported and burned like fossil fuels in car engines....
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