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If a question gives litres of gases and same temperature pressure which law is likely?

Answer and explanation

Correct answer: Law of gaseous volumes

The governing concept is the law of gaseous volumes, commonly associated with Gay-Lussac. If a problem gives volumes in litres and specifically states that gases are measured at the same temperature and pressure, it is signalling a volume relationship in a gas reaction. Under those identical conditions, reacting gas volumes and product gas volumes can be compared in simple whole-number ratios. Therefore, option A is correct. The law of definite proportions concerns fixed composition by mass, the law of multiple proportions compares mass ratios in different compounds, and conservation of mass concerns total mass rather than gas volume. The units and conditions are the key clues.

Related tags

ChemistryGaseous VolumesGay-Lussac LawLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

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