state and explain gay lussacs law of gaseous
Answers
Gay Lussac's Law of Combining Volumes states that when gases react, they do so in volumes which bear a simple ratio to one another, and to the volume of the product(s) formed if gaseous, provided the temperature and pressure remain constant. The law explains experimental facts about how gaseous atoms combine.
Explanation:
Gay-Lussac’s law is a gas law which states that the pressure exerted by a gas (of a given mass and kept at a constant volume) varies directly with the absolute temperature of the gas. In other words, the pressure exerted by a gas is proportional to the temperature of the gas when the mass is fixed and the volume is constant.
This law was formulated by the French chemist Joseph Gay-Lussac in the year 1808. The mathematical expression of Gay-Lussac’s law can be written as follows:
P ∝ T ; P/T = k
Where:
P is the pressure exerted by the gas
T is the absolute temperature of the gas
k is a constant.
The relationship between the pressure and absolute temperature of a given mass of gas (at constant volume) can be illustrated graphically as follows.
Gay-Lussac's Law
From the graph, it can be understood that the pressure of a gas (kept at constant volume) reduces constantly as it is cooled until the gas eventually undergoes condensation and becomes a liquid.