0
The phlogiston theory proposed that everything contains an element called phlogiston which is released when something burns. It was initially challenged by the fact that things do not necessarily lose weight when burned.
It was replaced entirely by oxidation theory (which we still hold today) when it was realised that things could not burn if oxygen wasn't present.
The phlogiston theory has been proven incorrect. Chemists now realize that there is no specific element that is found in all flammable things. Instead, the ability to burn has something to do with reaction to oxygen in the air.
it was quite a beautiful theory except for the fact that it didn't explain a few heat related phenomena. It was finally proven wrong by Priestly I believe when he should heat could be produce by purely mechanical means, in particular boring out cannon mussels.
It was first thought that phlogiston was a substance, or gas rather, that was secreted from a combustion reaction. It was also thought that when the air became highly concentrated with phlogiston that the reaction would cease. However, this was later disproved by Lavoisier, who discovered that the reason combustion reactions ceased was because of the lack of oxygen. Oxygen, in fact, used to be called dephlogisticated air.
Add your answer:
Earn +20 pts
How did Antoine lavoisier disprove the phlogiston theory?
Antoine Lavoisier disproved the phlogiston theory by experimenting with combustion reactions and showing that burning substances gained weight instead of losing it. He demonstrated that oxygen is an essential component of combustion, not phlogiston as proposed by the theory. Lavoisier's precise measurements and meticulous approach to experimental evidence played a crucial role in discrediting the phlogiston theory and establishing the foundation for modern chemistry.
An early theory of combustion held that everything that burned contained a substance called?
phlogiston, a hypothetical substance believed to be released during combustion. This theory proposed that materials burned because they released their phlogiston. The discovery of oxygen and its role in combustion led to the rejection of the phlogiston theory.
What is the phylogiston theory of burning - how is it correct?
The phlogiston theory of burning is an outdated concept that suggested a substance called "phlogiston" was released during combustion. It was believed that the presence of phlogiston was necessary for materials to burn. However, this theory has been disproven with the advancement of modern chemistry, which identifies combustion as a process involving the reaction of materials with oxygen in the air.
Did Antoine lavoisier agree with the phlogiston theory?
No, Antoine Lavoisier did not agree with the phlogiston theory. Instead, he proposed the modern understanding of combustion, which involves the reaction of a substance with oxygen. His experiments led to the rejection of the phlogiston theory in favor of the oxygen theory of combustion.
Who discovered Phlogiston?
The theory of phlogiston was proposed by German chemist Johann Joachim Becher, and later developed by his student Georg Ernst Stahl in the 17th and 18th centuries.
What is the principle of the phlogistan theory?
The phlogiston theory was a scientific hypothesis that proposed that all combustible materials contain a substance called "phlogiston," which is released during combustion. According to the theory, when a substance burns, it loses phlogiston. This theory has been disproven by modern chemistry.
What do people believe about the phlogiston theory?
The phlogiston theory, which suggested that all combustible materials contained a substance called phlogiston that was released during combustion, was once widely accepted. However, it has since been discredited with the advancement of modern chemistry and the discovery of oxygen's role in combustion. Today, the phlogiston theory is considered a historical scientific misconception.
Is phlogiston considered a scientific knowledge?
No. Phlogiston was a theory considered to be fact and actually hindered scientific knowledge until it was discredited. The theory was used to explain certain observations about flame, oxidation, and the formation of certain compounds, most noticeably cinnabar. As with some theories, phlogiston used variable factors to explain anomalies. For instance it was assumed to have negative weight under certain circumstances. Once oxidation was properly understood phlogiston theory was no longer considered true.
What evidence is there to prove phlogiston theory of burning was correct?
The phlogiston theory has been debunked by the discovery of oxygen. When materials burn, they combine with oxygen, not phlogiston as believed in the theory. The understanding of combustion and oxidation provided by oxygen led to the rejection of the phlogiston theory.
Is Phlogiston considered not to be scientific knowledge?
Phlogiston was an early scientific attempt to explain what is now referred to as the generation and flow of heat. It was believed to be a fluid that existed inside objects and could flow through them (even if they were solids)). It was replaced by the theory of thermodynamics.
When iron rusts is it a phlogiston theory or a oxygen theory?
It is a process that involves oxygen. The phlogiston theory has been disprooven for a long time.
Was the phlogiston theory of burning correct?
No, it was not. The phenomena explained by the theory are now known to be a result of oxidation, and phlogiston does not exist.
Who propose the phlogiston theory?
The phlogiston theory was first proposed by Johann Joachim Becher in 1667. This theory is now considered obsolete and was replaced by the oxygen theory.
Who rejected phlogiston theory?
Antoine Lavoisier is credited with rejecting the phlogiston theory. Through his experiments and observations, he was able to show that combustion involved a process of oxidation rather than the release of phlogiston. This led to the development of modern chemistry.
Did chemists believe in the phlogiston theory?
Yes, chemists believed in the phlogiston theory in the 17th and 18th centuries. It was thought that when substances burned, they released a substance called phlogiston. However, the theory was eventually disproven with the development of modern chemistry.
What is the phlogiston?
The alchemist and physician J. J. Becher proposed the phlogiston theoryThe phlogiston theory (from the Ancient Greek φλογιστόν phlogistón "burning up", from φλόξ phlóx "flame"), first stated in 1667 by Johann Joachim Becher, is an obsolete scientific theory that postulated the existence of a fire-like element called "phlogiston", which was contained within combustible bodies and released during combustion. The theory was an attempt to explain processes of burning such as combustion and the rusting of metals, which are now collectively known as oxidation.
What are the good points of the phlogiston theory?
a combustible material is made up of 2 parts: the calx and phlogiston when a substance burnt the phlogiston into air and calx(ash) left behind so there are no good points of this theory
