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MHT CET 2024 (4 May, Shift 2) · Specific Heats of Gases - Cp, Cv, γ & Mayer's Relation

Specific Heats of Gases - Cp, Cv, γ & Mayer's Relation question from MHT CET 2024 (4 May, Shift 2)

Q15MHT CET 2024 · 4 MAY · SHIFT 2Easy

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

If CpC_p and CvC_v are molar specific heats of an ideal gas at constant pressure and volume respectively and ' γ\gamma ' is Cp/CvC_p/C_v then Cp=C_p = ( R=R = universal gas constant)

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Answer: (a)

  1. Mayer: Cp−Cv=RC_p - C_v = R and Cv=CpγC_v = \frac{C_p}{\gamma}.
  2. Cp(1−1γ)=R⇒Cp=γRγ−1C_p\left(1 - \frac{1}{\gamma}\right) = R \Rightarrow C_p = \frac{\gamma R}{\gamma-1}
  3. So the answer is (a) γRγ−1\frac{\gamma R}{\gamma-1}.
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