Question

State and explain Avogadro law.

Answer 1

   Avogadro law (Volume-Amount relationship): 

i. Statement: 

Equal volumes of all gases at the same temperature and pressure contain equal number of molecules. 

ii. Explanation: 

V is directly proportional to n (number of moles) at constant ‘P’ and ‘T’. 

V ∝ n

V = k₄ × n (where, k₄ is proportionality constant)

∴ \(\frac{V}n\) = constant (at constant T and P)

Note: Representation of Avogadro law