It is not necessary, it is just easier to do so.
Since volumes of gases change with temperature and pressure, a standard value of temperature and pressuure is chosen to which gas volumes are referred. Hence volumes of gases are converted into S.T.P. conditions and then compared easily.
Volume of a gas at STP (standard temperature and pressure) refers to the volume that a gas occupies when measured at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere. This volume is typically given in liters or cubic meters.
As thenumber of molecules incresses so does the volume
This law give the variation in volume of a gas with amount of the gas. It states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules.
Avogadro's Law states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. This relationship allows for the comparison of different gases under the same conditions.
Since volumes of gases change with temperature and pressure, a standard value of temperature and pressuure is chosen to which gas volumes are referred. Hence volumes of gases are converted into S.T.P. conditions and then compared easily.
Standard temperature and pressure (STP) refers to a temperature of 0°C and a pressure of 1 atmosphere (ATM). It is commonly used as a reference point for comparing gas volumes and conducting experiments in chemistry.
Volume of a gas at STP (standard temperature and pressure) refers to the volume that a gas occupies when measured at a temperature of 0 degrees Celsius and a pressure of 1 atmosphere. This volume is typically given in liters or cubic meters.
Amedeo Avogadro
The Avogadro law is: equal volumes of gases have the same number of molecules at constant pressure and temperature.
Equal volumes of gases under the same conditions of temperature and pressure have an equal number of molecules, according to Avogadro's Law. This relationship allows for direct comparisons of the amounts of different gases.
Avogadro's principle states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. This principle is the foundation for the concept of the mole in chemistry, where one mole of any gas at standard temperature and pressure occupies a volume of 22.4 liters.
If equal volumes of nitrogen and oxygen are at the same temperature and pressure, then both (the nitrogen and oxygen) will contain the same number of particles
As thenumber of molecules incresses so does the volume
This law give the variation in volume of a gas with amount of the gas. It states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules.
Avogadro's Law states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. This relationship allows for the comparison of different gases under the same conditions.
Avogadro's Theory states that equal volumes of gases at the same temperature and pressure contain the same number of molecules. This theory led to Avogadro's Law, which states that the volume of a gas is directly proportional to the number of moles of gas present.