Question

According to Avogadro's law the volume of a gas will ____ as _____ if ____ are held constant.

• A. increases, number of moles; P & T
• B. decreases, number of moles; P & T
• C. increases; T & P; number of moles
• D. decreases; P & T; number of moles

Answer 1

The correct option is A increases, number of moles; P & T

According to Avogadro's law: Equal volume of all gases at same temperature and pressure will have same no. of molecules.

OR

For a given mass of ideal gas,

Volume$\propto$Number of moles of the gas (if temperature and pressure are constant)

So, volume of the gas will increase as the number of moles if pressure (P) and temperature (T) are held constant.