What is Avogadro law Short answer?

Avogadro’s law, a statement that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules. This empirical relation can be derived from the kinetic theory of gases under the assumption of a perfect (ideal) gas.

What is Avogadro law class 10?

Avogadro’s law states that Equal volumes of gases under same conditions of temperature and pressure contain an equal number of molecules. It follows that one mole of any gas will contain an equal number of molecules (Avogadro’s number- \ce6.023×1023) and will occupy the same volume.

What is Avogadro law used for?

The Ideal Gas Law combines several laws, including Boyle’s Law, Charles’ Law, Gay-Lussac’s Law and Avogadro’s Law, into one neat and tidy formula! This law is commonly used to calculate how the volume of a gas will change if temperature, pressure or amount of gas is changed.

What is the example of Avogadro law?

The process of respiration is a great example of Avogadro’s law. When humans inhale, the increase in the molar quantity of air in the lungs is accompanied by an increase in the volume of the lungs (expansion of the lungs).

How did Avogadro prove his law?

In 1811 Avogadro published a paper in Journal de Physique, the French Journal of Physics. He said that the best explanation for Gay-Lussac’s observations of gas reactions was that equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules. This is now called Avogadro’s law.

What is the value of Avogadro number?

Avogadro’s number, number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.02214076 × 1023. The units may be electrons, atoms, ions, or molecules, depending on the nature of the substance and the character of the reaction (if any).

How is Avogadro’s law used in space?

Avogadro’s Law is used in space because astronauts need to know how much of the gases such as oxygen can be fit into spacecraft as there is only a limited amount of space in the spacecraft.

Did Avogadro win any awards?

Avogadro was highly intelligent. In 1796, when he was only 20, he was awarded a doctorate in canon law and began to practice as an ecclesiastical lawyer.

Why is today Mole Day?

Celebrated by chemists annually from 6.02 am to 6.02 pm on October 23rd, Mole Day commemorates Avogadro’s number (6.022 x 1023), which is the number of atoms in exactly 12 grams of carbon-12 (one mole). This was founded by the National Mole Day Foundation on 15th May 1991.

How is Avogadro’s law tested?

The number of molecules or atoms in a specific volume of ideal gas is independent of size or the gas’ molar mass. Avogadro’s Law is stated mathematically as follows: Vn=k V n = k , where V is the volume of the gas, n is the number of moles of the gas, and k is a proportionality constant.