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The burning of charcoal is a spontaneous process yet heat must first be applied to start a charcoal why?
Wiki User
∙ 14y ago
Burning charcoal is spontaneous, but not at room temperature. To start the combustion energy must be added (in the form of heat). Once the temperature of the charcoal reaches a certain temperature it reacts exothermically and releases heat. This heat of reaction is sufficient to locally heat more charcoal so that it burns continuously.
Wiki User
∙ 14y ago
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Is burning of candel is spontaneous process?
Yes, candle burning is a spontaneous process. A spontaneous process is defined as: once it is allowed to start, the process will proceed to the finish without any external intervention. You lit the candle, it was allowed to burn and it would keep going without any help. The Gibbs free energy change for this process is negative. On the other hand, the decomposition of CaCO3(s) is NOT a spontaneous process. You have to keep heating the reaction vessel in order to decompose all CaCO3. Outside intervention is needed for this process to finish.
What are some example of non spontaneous process?
electrolysis, burning/combustion, photosynthesis. sorry that's the processes i am sure of. (we were still discussing about this in class)
Why is charcoal burning in the grill a chemical change?
The process of converting wood into charcoal mainly involves removing water and other organic impurities, leaving a brittle and impure block of carbon. This is a change in the chemical structure and makeup of the wood.
What is spontaneous process explain the role of free energy in these processes?
what is spontaneous process".Explain the role of free energy in these processes.
Can you bring back the charcoal to its original form?
No, once charcoal is formed through the process of burning or heating organic material in the absence of air, it cannot be converted back into its original form. The high temperatures and chemical changes that occur during the formation of charcoal irreversibly alter the structure of the organic material.
Is burning of candel is spontaneous process?
Yes, candle burning is a spontaneous process. A spontaneous process is defined as: once it is allowed to start, the process will proceed to the finish without any external intervention. You lit the candle, it was allowed to burn and it would keep going without any help. The Gibbs free energy change for this process is negative. On the other hand, the decomposition of CaCO3(s) is NOT a spontaneous process. You have to keep heating the reaction vessel in order to decompose all CaCO3. Outside intervention is needed for this process to finish.
What is the process of burning wood in the insufficient supply of air or oxygen called?
I think carbonisation is the word, the end result is charcoal.
What are some example of non spontaneous process?
electrolysis, burning/combustion, photosynthesis. sorry that's the processes i am sure of. (we were still discussing about this in class)
Why is charcoal burning in the grill a chemical change?
The process of converting wood into charcoal mainly involves removing water and other organic impurities, leaving a brittle and impure block of carbon. This is a change in the chemical structure and makeup of the wood.
What is spontaneous process explain the role of free energy in these processes?
what is spontaneous process".Explain the role of free energy in these processes.
What kind of heat energy is burning wood?
Burning wood is the process of converting chemical energy in the fuel into thermal energy. Heat transfer is the process of moving thermal energy from one object to another. There are different types oh heat transfer including radiation, conduction and convection. Basically, the wood burning is a spontaneous process, theoretically, but in order for the process to become under way something called the activation energy must be overcome, which means that an energy of that magnitude must be applied to the wood to get it burning (oxidising). This usually comes in the form of a spark or a flame from your lighter. So once you apply that activation energy from your lighter, the wood begins to burn, and the burning of the wood itself produces heat to propagate the process. So long as there is oxygen, fuel (such as wood or octane for example) and the initial spark, then you have fire!
What is the role of charcoal in gunpowder mixture and why not ashes because I think ashes would provide more carbon than charcoal?
No - simple ashes contains more than just carbon. It contains other elements from burning wood - such as sap, insect bodies etc. Charcoal is pure carbon - all other 'additives' are burned off during the manufacturing process.
Is crystallisation of sucrose from a solution a spontaneous process?
Yes it is.
Can you bring back the charcoal to its original form?
No, once charcoal is formed through the process of burning or heating organic material in the absence of air, it cannot be converted back into its original form. The high temperatures and chemical changes that occur during the formation of charcoal irreversibly alter the structure of the organic material.
Why is Charcoal burning in a grill a chemical Change?
Chemical.The easiest way to determine this is to try and get the process to reverse. You cannot take CO2 and H2O (the products of burning coal) and make them separate back into coal (C) and oxygen (O2).If you cannot go backwards to get the original material, then it is a chemicalchange.
When was Burning the Process created?
Burning the Process was created on 2001-10-02.
Does burning process occur in vacuum?
burning process does not occur due to absence of air.
