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Hydrogen combustion involves four key steps:
- Initiation: Hydrogen and oxygen molecules come into contact, often requiring an initial energy source (like a spark) to overcome the activation energy barrier.
- Propagation: The reaction rapidly proceeds as hydrogen molecules react with oxygen, forming water vapor and releasing energy in the form of heat and light.
- Termination: The reaction continues until the available hydrogen or oxygen is consumed, or until the temperature drops below the necessary threshold to sustain combustion.
- Product Formation: The primary products of hydrogen combustion are water (H₂O) and heat, contributing to a clean energy release with minimal pollutants.
What else can I help you with?
Why is water identical to the standard enthalpy change of combustion of hydrogen.?
Water is identical to the standard enthalpy change of combustion of hydrogen because the combustion of hydrogen involves its reaction with oxygen to form water. The standard enthalpy change of this reaction is defined by the energy released when hydrogen combusts completely, which results in the formation of water as a product. Thus, the formation of water from hydrogen and oxygen under standard conditions directly correlates to the enthalpy change associated with the combustion process. Hence, the enthalpy change for the formation of water from its elemental components is equivalent to the enthalpy change of hydrogen combustion.
What are the steps that occur during the combustion of hydrogen?
The combustion of hydrogen involves a chemical reaction between hydrogen gas (H₂) and oxygen gas (O₂), typically producing water (H₂O) as the primary product. The process begins with the initiation of the reaction, often requiring an ignition source to provide the necessary activation energy. Once ignited, hydrogen reacts rapidly with oxygen, resulting in an exothermic reaction that releases energy in the form of heat and light. This reaction can be represented by the equation 2H₂ + O₂ → 2H₂O.
What order should atoms be balanced in a hydrocarbon combustion reaction?
Answer this question… Carbon, hydrogen, oxygen
Which gas supports combustion other than oxygen?
Other gases that can support combustion include hydrogen, methane, and carbon monoxide. These gases can act as oxidizers in the absence of oxygen and can sustain a fire by reacting with the fuel in the combustion process.
What happens during the combustion of hydrogen.?
During the combustion of hydrogen, hydrogen gas (H₂) reacts with oxygen (O₂) in the presence of heat to produce water (H₂O) as the primary product. This reaction releases a significant amount of energy in the form of heat and light, making it an exothermic process. The balanced chemical equation for this reaction is 2H₂ + O₂ → 2H₂O. Additionally, the combustion of hydrogen produces no carbon emissions, making it a clean energy source.
Can a combustion reaction produce hydrogen?
No. If anything, a combustion reaction will consume hydrogen.
Does hydrogen support combustion?
Yes, hydrogen is highly flammable and supports combustion. When hydrogen comes into contact with oxygen, it ignites and produces a flame.
How do motors on hydrogen cars differ from combustion or hybrid engines?
Like a gas combustion engine, a hydrogen engine relies on the combustion process - in this case, combustion that results when hydrogen is combined with oxygen. Fuel cells in a hydrogen-powered car then convert this mechanical energy into electrical energy.
Can hydrogen support combustion?
Hydrogen is a fuel for combustion, but cannot support it in the manner than oxygen can.
Hydrogen in internal-combustion engine?
no
What is the equation for the incomplete combustion of hydrogen?
The equation for the incomplete combustion of hydrogen is 2H₂ + O₂ -> 2H₂O + energy (incomplete combustion).
Why hydrogen not burn on its own?
Hydrogen gas (dihydrogen or molecular hydrogen)[10] is highly flammable and will burn in air at a very wide range of concentrations between 4% and 75% by volume.[11] The enthalpy of combustion for hydrogen is −286 kJ/mol.Burning or combustion is the process of formation of oxides.Hydrogen reacts with o2 to give water & a lot of energy.
Is the combustion of hydrogen exothermic or endothermic?
The combustion of hydrogen is exothermic because it releases energy in the form of heat and light during the reaction.
Does hydrogen combustion produce carbon?
No, burning hydrogen produces only water, it does not produce carbon or carbon dioxide.
Why is water identical to the standard enthalpy change of combustion of hydrogen.?
Water is identical to the standard enthalpy change of combustion of hydrogen because the combustion of hydrogen involves its reaction with oxygen to form water. The standard enthalpy change of this reaction is defined by the energy released when hydrogen combusts completely, which results in the formation of water as a product. Thus, the formation of water from hydrogen and oxygen under standard conditions directly correlates to the enthalpy change associated with the combustion process. Hence, the enthalpy change for the formation of water from its elemental components is equivalent to the enthalpy change of hydrogen combustion.
Does hydrogen gas support combustion?
Yes, hydrogen gas supports combustion. It is highly flammable and burns in the presence of oxygen to produce heat and water vapor.
Equation for the combustion of hydrogen?
2h2 + o2 ----> 2h2o
