alleryStart learning →The pressure of a gas is a measure of what?
AColour of the particles
BCharges on particles
CCollisions of particles
DWeight of the particles
Answer & Solution
Correct answer: C. Collisions of particles
1. Gas particles move in straight lines and keep bumping into things.
2. Pressure measures the number of collisions of the particles with each other and with the container walls.
3. Squeezing the same gas into a smaller space makes those collisions more frequent.
4. More frequent collisions therefore mean a higher pressure.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 7: Ideal gases_
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