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NEET 1990 (AIPMT) · Specific Heats of Gases - Cp, Cv, γ & Mayer's Relation

Specific Heats of Gases - Cp, Cv, γ & Mayer's Relation question from NEET 1990 (AIPMT)

Q65NEET 1990 · AIPMTMedium

Specific Heats of Gases - Cp, Cv, γ & Mayer's Relation

For a certain gas the ratio of specific heats is given to be γ=1.5\gamma = 1.5. For this gas

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Answer: (b)

  1. CV=Rγ−1=R0.5=2RC_V = \dfrac{R}{\gamma - 1} = \dfrac{R}{0.5} = 2R
  2. CP=CV+R=3RC_P = C_V + R = 3R (in work units); in heat units divide by JJ.
  3. So the answer is (b) CP=3R/JC_P = 3R/J.
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