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States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter1 Mark
MCQ
Which is wrong according to kinetic theory of gases?
  • A
    Average $\ce{KE}$ of molecules is proportional to the absolute temperature
  • B
    Collisions between molecules are perfectly elastic
  • ✓
    Pressure is due to collisions between molecules
  • D
    Pressure is due to collisions between molecules
✓

Answer

Correct option: C.
Pressure is due to collisions between molecules
In kinetic theory of gases pressure is due to the molecules colliding with the walls of the container and not when molecules collide with each other.

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