Question

Three flasks of equal volumes contain $C{H}_4,C{O}_2$ and $C{l}_2$ gases respectively. They will contain equal number of molecules if :

• A. The mass of all gases are same
• B. The moles of all the gas is same but temperature is different
• C. Temperature and pressure of all the flasks are same
• D. Temperature, pressure and masses are same in the flasks

Answer 1

The correct option is C Temperature and pressure of all the flasks are same

According to Avogardo's law, equal volumes of all gases at the same temperature and pressure contain equal number of particles. Hence the temperature and pressure of all the flasks are same.