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Question: Answered & Verified by Expert
In kinetic theory of gases, a molecule of mass $m$ of an ideal gas collides with a wall of vessel with velocity $V$. The change in the linear momentum of the molecule is
PhysicsKinetic Theory of GasesJEE Main
Options:
  • A $2 m V$
  • B $m V$
  • C $-m V$
  • D Zero
Solution:
2860 Upvotes Verified Answer
The correct answer is: $2 m V$
$\Delta p=m V-(-m V)=2 m V$

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