Charcoal and sulfur burn differently in air and oxygen, respectively

The fact that charcoal and sulfur burn in the air and oxygen respectively are different, indicating that the combustion of combustibles is related to the concentration of oxygen, and the higher the concentration, the more intense the combustion

Therefore, the answer is: the combustion of combustibles is related to the concentration of oxygen, and the higher the concentration, the more intense the combustion

It is illustrated that combustion requires the support of oxygen, and the degree of combustion is directly proportional to the concentration of oxygen.

Combustion is a kind of exothermic and luminescent chemical reaction, and its reaction process is extremely complex, the chain reaction of free radicals is the essence of the combustion reaction, and light and heat are the physical phenomena that occur during combustion.

During combustion, the fuel, oxygen, and combustion products transfer momentum, heat, and mass transfer to form a flame, a complex structure with multi-component concentration gradients and non-isothermal two-phase flows. These transfers within the flame are achieved by laminar molecular transfer or turbulent micromass transfer, while industrial combustion units are dominated by turbulent micromass transfer. Exploring the distribution of velocity, concentration, and temperature in the combustion chamber and their interaction is an important part of the study of the combustion process from the perspective of fluid mechanics.

Due to the complexity of the combustion process, experimental technology is the main means of combustion engineering. Computational combustion, which has been developed in recent years, has made significant progress in the study and charging of engineering problems such as the flow field in combustion equipment, the ignition of fuels and the process of heat transfer in combustion, and the stability of flames by establishing physical models of combustion processes to solve differential equations such as momentum, energy, and chemical reactions.

The experimental phenomenon of charcoal burning in oxygen is that it burns violently, emits white light, and emits heat, producing a gas that makes the clarified lime water turbid. The experimental phenomenon of charcoal burning in the air is to emit red light, release heat, and produce a gas that makes the clarified lime water turbid.

Related:

Charcoal is a dark brown or black porous national fuel left over from incomplete combustion of wood or wood-based raw materials or pyrolysis under the condition of isolated air.

Charcoal burns in oxygen and the chemical equation for the reaction is C+O2=ignition CO2.

The combustion of charcoal in air is not as pronounced as in air, which is related to the concentration of reactants, because the oxygen content in the air involved in the reaction is relatively small. The reaction chemistry equation also ignites CO2 for C+O2+.

The fact that charcoal and sulfur burn in the air and oxygen respectively are different, indicating that the combustion of combustibles is related to the concentration of oxygen, and the higher the concentration, the more intense the combustion

Therefore, the answer is: the combustion of combustibles is related to the concentration of oxygen, and the higher the concentration, the more intense the combustion

Charcoal burns red in the air and does not burn violently; In oxygen, it burns violently and emits white light, indicating that oxygen has a role in combustion. Charcoal, the name of a fuel. It is a dark brown or black porous solid fuel left over from incomplete combustion of wood or wood-based raw materials or pyrolysis under the condition of insulating air.

The main component of charcoal is carbon, the ash content is very low, the calorific value is about megajoules, in addition to hydrogen, oxygen, nitrogen and a small amount of other elements, its content has little to do with the tree species, mainly depends on the final temperature of carbonization.

Charcoal is a hydrophobic substance, the ash content is within 6%, the pores account for more than 7% of the volume of charcoal, the specific gravity is generally, the calorific value depends on the carbonization conditions, generally about 8000 kcal kg, the reducing capacity of charcoal is greater than that of coke.

Charcoal has a large number of micropores and transition pores, so that it not only has a high specific surface area, but also has good adsorption properties after the tar substances in the pores are excluded. Complete combustion with oxygen produces carbon dioxide, and incomplete combustion produces the toxic gas carbon monoxide. Relatively loose.

the contact area between the different phenomena of combustible combustion and oxygen; the concentration of oxygen; The nature of combustibles is related; The reason why charcoal burns more violently in oxygen than in the air is that the concentration of oxygen is large and the concentration of oxygen in the air is small

Answer: The concentration of oxygen is high, and the concentration of oxygen in the air is small