Question

The mathematical expression that relates gas volume and moles what is that mathematical expression

Answer 1

Avogadro's Hypothesis

Equal volumes of any gas at the same temperature and pressure contain the same number of molecules.

It follows that the volume of a gas is directly proportional to the number of moles of gas present in the sample.

Avogadro's Law

It states that the volume of a gas is directly proportional to the number of moles/particles of gas when the temperature and pressure are held constant.

The mathematical expression of Avogadro's Law is:   V = k × n

$\boxed{\bf \dfrac{V_1}{n_1}=\dfrac{V_2}{n_2}}$

Where,

• V = gas volume

• n = number of moles of gas

• k= constant

Some Applications

• Avogadro's Law is in evidence whenever you blow up a balloon. The volume of the balloon increases as you add moles of gas to the balloon by blowing it up.

• If the container holding the gas is rigid rather than flexible, pressure can be substituted for volume in Avogadro's Law. Adding gas to a rigid container makes the pressure increase.