Tuesday, 9 June 2020

thermodynamics - How do we find force to derive $pV=Nmv^2$?


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Since momentum is not changing in time t , but instantaneously in very small time at wall B.


Why do we write $F=\frac{2mv}{t}$? Where $t$ is (twice the distance AB)/ velocity.


Why don't we take the instantaneous time to write the expression of force?




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