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For an ideal gas

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  1. Cp < Cv
  2. Cp = Cv
  3. Cp > Cv
  4. Cp = Cv =0

Answer (Detailed Solution Below)

Option 3 : Cp > Cv
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Detailed Solution

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Explanation:

For an ideal gas, the relationship between the specific heat capacities at constant pressure (Cp) and constant volume (Cv) is given by the equation:

Cp - Cv = R

where R is the universal gas constant. This equation indicates that Cp is always greater than Cv because R is a positive constant.

∴ Cp > Cv is the correct answer.

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