Verified Solution • 2025–26 Session moderate

QJEEM20Ch9a6d: JEE Main 2020 Chemistry - Class 11 JEEM20Ch9a6d Solution: Five moles of an ideal gas at 1 bar and 298 K is expanded into…

Five moles of an ideal gas at 1 bar and 298 K is expanded into vacuum to double the volume. The work done is :

Multiple Choice Options

  • A Zero
  • B -RT ln⁡V2V1\ln {{{V_2}} \over {{V_1}}}
  • C CV (T2 – T1)
  • D – RT (V2 – V1)

Step-by-Step Verified Solution

As the expansion is done in vacuum that is in absence
of pext so pext = 0

∴\therefore W = - pext Δ\Delta V

= 0

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