Question

The number of molecules per unit volume of gas is given by

Answer 1

we cannot tell that because has doesnot have fixed volume hence it doesnot have fixed molecules

Answer 2

Hello dear,


● Answer -
N/V = P/kT

● Explanation -
According to ideal gas equation -
PV = nRT

Alternatively in terms of Boltzmann constant, it can also be written as -
PV = NkT
N/V = P/kT

Therefore, no of molecules per unit volume is given by P/kT.

Hope this helped to solve your doubt.
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