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Define and derive Boltzmann constant....

Define and derive Boltzmann constant.

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It is the gas constant per molecule.
`therefore k_(B)=(R)/(N_(A))orR=k_(B)N_(A)`
R - gas const, `N_(A)` - Avogadro No,
`K_(B)` - Boltzmann
No. of molecules `n=("No. of molecules")/("Avogadro's no")=(N)/(N_(A))`
`PV=nRT=(N)/(N_(A))=K_(B)N_(A)T`
`PV=K_(B)NT`
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