Q. According to Avogadro's law, at constant temperature and pressure, equal volumes of different gases contain:

अवोगाद्रो के नियम के अनुसार, स्थिर तापमान और दबाव पर, विभिन्न गैसों की समान मात्रा में होते हैं:

Equal masses
समान जन

Equal number of atoms
परमाणुओं की समान संख्या

Equal number of molecules
अणुओं की समान संख्या

Different number of molecules
अणुओं की भिन्न संख्या

Avogadro's Law states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules (or moles).

Mathematical expression: V ∝ n (at constant T and P) V₁/n₁ = V₂/n₂

Key points:

One mole of any gas occupies 22.4 L at STP
This applies to molecules, not atoms (H₂ and O₂ have different masses but same number of molecules in equal volumes)
Foundation for molar volume concept

Example: 1 L of H₂ and 1 L of CO₂ at same T,P contain same number of molecules (but different masses)

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