Question

write 4 constraints of henry cavendish​

Answer 1

Answer:

Cavendish expressed his findings in terms of the phlogiston theory, at that time the accepted theory of chemistry. According to this, when a body caught fire, it gave up its subtle principle of combustion, phlogiston, leaving the ashes or calx. Consequently, a metal was regarded as a compound of calx and phlogiston. By factitious air, Cavendish meant any air contained in an unelastic state in bodies, from which the air could be freed by chemical means. This definition included Black's “fixed air” and was made necessary by Cavendish's extension of the list of independently existing gases. The first part of Cavendish's paper dealt with the experiments on inflammable air. Zinc, iron, and tin dissolved in dilute vitriolic acid or spirit of salt all produced inflammable air, which Cavendish collected over water in a receiver, suspended by string. However, these metals did not produce inflammable air when dissolved in nitrous acid or undiluted acid of vitriol.

Answer 2

Required Answer :

→Henry Cavendish FRS ,10 October 1731 – 24 February 1810) was an English natural philosopher, scientist, and an important experimental and theoretical chemist and physicist.

→He is noted for his discovery of hydrogen, which he termed "inflammable air".

→He described the density of inflammable air, which formed water on combustion, in a 1766 paper, On Factitious Airs.

→Antoine Lavoisier later reproduced Cavendish's experiment and gave the element its name.

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