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SSC CGL 2020 PYQ — Question 36

SSC CGL - 5th March 2020 Shift 1 • General Awareness • Q36

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Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain an equal number of molecules.

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Avogadro’s Law.

  • Avogadro’s law states that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules.
  • This empirical relation can be derived from the kinetic theory of gases under the assumption of a perfect (ideal) gas.
  • The law is approximately valid for real gases at sufficiently low pressures and high temperatures.