Verified Solution • 2025–26 Session moderate

QJEEM21Chae3e: JEE Main 2021 Chemistry - Class 11 JEEM21Chae3e Solution: The unit of the van der Waals gas equation parameter 'a' in is :

The unit of the van der Waals gas equation parameter 'a' in (P+an2V2)(V−nb)=nRT\left( {P + {{a{n^2}} \over {{V^2}}}} \right)(V - nb) = nRT is :

Multiple Choice Options

  • A kg m s −- 2
  • B dm3 mol −- 1
  • C kg m s −- 1
  • D atm dm6 mol −- 2

Step-by-Step Verified Solution

an2V2=atm⇒a=atm×dm6mol2{{a{n^2}} \over {{V^2}}} = atm \Rightarrow a = atm \times {{d{m^6}} \over {mo{l^2}}}

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