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JIPMER 2019
Exam
JIPMER
Year
2019
Subject
Chemistry
Chapter
States of Matter

JIPMER 2019 · Chemistry · States of Matter

In an ideal gas equation which is constant?

In an ideal gas equation which is constant?

Options

  1. ATemperature
  2. BPressure
  3. CVolume
  4. DUniversal gas constant

Correct answer

D. Universal gas constant

Step-by-step solution

According to ideal gas equation, pV=nRT\mathrm{pV}=\mathrm{nRT} where, p=\mathrm{p}= pressure, V=\mathrm{V}= volume n=\mathrm{n}= no. of mole, T=\mathrm{T}= temperature R=\mathrm{R}= universal gas constant R=8.314 J mol−1 K−1\mathrm{R}=8.314 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1} =0.08205 L atm mol−1 K−1=1.99calmol−1 K−1=0.08205 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}=1.99 \mathrm{cal} \mathrm{mol}^{-1} \mathrm{~K}^{-1} =5.189×1019eVmol−1 K−1=5.189 \times 10^{19} \mathrm{eV} \mathrm{mol}^{-1} \mathrm{~K}^{-1}
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