Gay Lussac's Law and Avogadro's Law

Different gas laws explain how temperature, pressure, volume and number of particles of gas a related to each other. Boyle’s law states that the product of pressure and volume of a fixed amount of gas at a constant temperature is constant. There are many applications of Boyle’s law in daily life such as maintaining normal pressure in aircrafts. Charles’s law states that at constant pressure, the volume of a fixed mass of a gas is directly proportional to its absolute temperature. Rising of hot air balloon is an application of Charle’s law. Gay-Lussac’s Law states that the ratio between the volumes of the gaseous reactants and the products can be expressed in simple whole numbers. Avogadro’s Law states that under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules.

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  • Q1

    Which one is the correct mathematical expression for Charles’s law?

    Marks:1
    Answer:

    Explanation:

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  • Q2

    For using GayLussac law, the quantities which must remain constant is/are

    Marks:1
    Answer:

    temperature and pressure.

    Explanation:

    According to Gay–Lussac’s law or combining volumes, when gases react, they do so in volumes which bear a simple ratio to one another, and to the volume of gaseous product, provided that the volumes are measured at the same temperature and pressure.

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  • Q3

    During the formation of ammonia from nitrogen and hydrogen, the ratio of volumes of reactants and product is

    Marks:1
    Answer:

    1:3:2

    Explanation:

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  • Q4

    The atomicity of sulphur molecule is

    Marks:1
    Answer:

    8

    Explanation:

    Sulphur molecule is S8. It is made up of 8 sulphur atoms. So, its atomicity is 8.

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  • Q5

    Gay Lussac’s law is applicable in case of

    Marks:1
    Answer:

    gases only.

    Explanation:

          Gay–Lussac’s law is applicable only for gases because in solids and liquids, volumes are considered to be zero.

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