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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
States of Matter

NTA Abhyas 2020 · Chemistry · States of Matter

Positive deviation from ideal behaviour takes place because of

Positive deviation from ideal behaviour takes place because of

Options

  1. AmolecularinteractionbetweenatomsandPVnR>1molecular interaction between atoms and \dfrac{PV}{nR} > 1
  2. BmolecularinteractionbetweenatomsandPVnRT<1molecular interaction between atoms and \dfrac{PV}{nRT} < 1
  3. CfinitesizeofatomsandPVnRT>1finite size of atoms and \dfrac{PV}{nRT} > 1
  4. DfinitesizeofatomsandPVnRT<1finite size of atoms and \dfrac{PV}{nRT} < 1

Correct answer

C. finitesizeofatomsandPVnRT>1finite size of atoms and \dfrac{PV}{nRT} > 1

Step-by-step solution

For positive deviation
PVnRT>1\dfrac{PV}{nRT} > 1
PV=nRT+nPbPV = nRT + nPb
PV/nRT=1+Pb/RTPV / nRT = 1 + Pb / RT
PV/nRT>1.PV / nRT > 1 .
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