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Petrol has a higher value of the heat of combustion.
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∙ 11y ago
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The burning of charcoal is a spontaneous process yet heat must first be applied to start a charcoal why?
The ignition of charcoal requires an external heat source to initiate the combustion reaction. Once the charcoal is ignited, the burning process becomes self-sustaining and does not require continuous external heat to sustain the reaction. This is why the burning of charcoal is considered a spontaneous process once it has been ignited.
What does the combustion of petrol cause?
The combustion of petrol produces carbon dioxide, water vapor, and heat energy. It also releases pollutants such as carbon monoxide, nitrogen oxides, and particulate matter into the atmosphere.
What happens when charcoal burns?
When charcoal burns, it undergoes a combustion reaction where it combines with oxygen to produce heat, carbon dioxide, and water vapor. This process releases energy in the form of heat and light. The carbon in the charcoal oxidizes to form carbon dioxide, leaving behind ash as a residue.
What energy is released when petrol burns?
When petrol burns, chemical energy stored in the molecules of petrol is converted into heat and light energy. This is a result of the combustion process, where the carbon and hydrogen in petrol react with oxygen to form carbon dioxide and water, releasing energy in the form of heat and light.
The burning of charcoal is a spontaneous processyet heat must first be applied to start a charcoal why?
The combustion of charcoal is an exothermic reaction: once the reaction starts, it releases heat, making it self-sustaining. However, initially, an external source of heat is required to overcome the activation energy barrier and initiate the reaction. Once started, the reaction releases enough heat to sustain itself.
What does petrol plus oxygen equal?
Add heat and you get combustion.
The burning of charcoal is a spontaneous process yet heat must first be applied to start a charcoal why?
The ignition of charcoal requires an external heat source to initiate the combustion reaction. Once the charcoal is ignited, the burning process becomes self-sustaining and does not require continuous external heat to sustain the reaction. This is why the burning of charcoal is considered a spontaneous process once it has been ignited.
What energy conversion is happening when charcoal is used the fuel for barbecue.?
When charcoal is used as fuel for a barbecue, chemical energy stored in the charcoal is converted into thermal energy (heat) through combustion. This heat is then used to cook the food on the grill.
What does the combustion of petrol cause?
The combustion of petrol produces carbon dioxide, water vapor, and heat energy. It also releases pollutants such as carbon monoxide, nitrogen oxides, and particulate matter into the atmosphere.
Is burning petrol exothermic or endothermic?
Burning petrol is an exothermic process. It releases heat and light as energy is given off during the combustion of petrol.
What is the energy conversion in a charcoal iron?
In a charcoal iron, the energy conversion involves the chemical energy stored in charcoal being converted into thermal energy through combustion. This thermal energy is then used to heat up the metal plate of the iron, which in turn transfers heat to the fabric to remove wrinkles.
What happens when charcoal burns?
When charcoal burns, it undergoes a combustion reaction where it combines with oxygen to produce heat, carbon dioxide, and water vapor. This process releases energy in the form of heat and light. The carbon in the charcoal oxidizes to form carbon dioxide, leaving behind ash as a residue.
What energy is released when petrol burns?
When petrol burns, chemical energy stored in the molecules of petrol is converted into heat and light energy. This is a result of the combustion process, where the carbon and hydrogen in petrol react with oxygen to form carbon dioxide and water, releasing energy in the form of heat and light.
Is burning petrol in a car engine exothermic?
Yes, burning petrol in a car engine is exothermic. During combustion, chemical reactions occur between the petrol (the fuel) and oxygen (from the air), releasing heat and energy in the process. This process of combustion generates the energy needed to power the car.
The burning of charcoal is a spontaneous processyet heat must first be applied to start a charcoal why?
The combustion of charcoal is an exothermic reaction: once the reaction starts, it releases heat, making it self-sustaining. However, initially, an external source of heat is required to overcome the activation energy barrier and initiate the reaction. Once started, the reaction releases enough heat to sustain itself.
What is the heat of combustion for decane?
The heat of combustion for decane is approximately -6,316 kJ/mol. This value represents the amount of heat released when one mole of decane is completely burned in oxygen to form carbon dioxide and water.
What is the heat of combustion of natural gas?
Natural gas is not just one type of hyrdocarbon, and so its heat of combustion (or enthalpy of combustion) will vary from sources. However, it is primarily formed from methane which has a "heat of combustion" of 889 Kilojoules per mole, you could use that value. Hope that's what you wanted!
