Cp and Cv Relationship for an Ideal Gas

When precise values are not needed or available, the following values can be used near room temperature:
Monatomic Gases (ex. Ar)
Diatomic Gases (ex. O2)
The definition of enthalpy is:
For ideal gases , this simplifies to:
The differential form of this equation is:
But, we showed on the previous two pages that:
Dividing each term by dT yields:
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Ch 3, Lesson C, Page 7 - Cp and Cv Relationship for an Ideal Gas