Q. Which concentration unit is independent of temperature?

कौन सी सांद्रण इकाई तापमान से स्वतंत्र है?

Molality
मोलैलिटी

Molarity
मोलरिटी

Normality
साधारण अवस्था

Percentage by volume
मात्रा के अनुसार प्रतिशत

Molality is independent of temperature because:

It's defined as moles of solute per kg of solvent
Mass doesn't change with temperature

Other units are temperature-dependent:

Molarity: Volume changes with temperature

Normality: Based on molarity, so temperature-dependent

Percentage by volume: Volume changes with temperature

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