According to kinetic theory of gases, the pressure exerted by the gas on the wall is equal
change in momentum per unit volume
rate of change of momentum imparted by the walls per second per unit area
momentum imparted to the walls per unit area
change in momentum imparted to the walls per unit area
Explanation
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Discussions (11)
I pretty much went in this direction:
Ft = mv-mu
F = mv-mu/t
but pressure = F/A
F/A = mv-mu/At
Hence the answer B
The presence of "per second" in option B makes the option incorrect because there is already "RATE OF CHANGE" and RATE implies time.Hence, if this definition is used, it will give a wrong dimension for pressure.
MySchool please check it out. I think the closest answer is D.
C is crt
pressure has nothing to do with the rate of momentum
it only involves the momentum with which it strike the wall of the container
the answer is C
pressure has nothing to do with change, that's another talk entirely leading to impulse
force is strictly based on v/t for the acceleration part not v-u
`hence, the answer should be C`
