What Are the Cp and Cv Values for Petrol and Air?

AI Thread Summary
The discussion focuses on the specific heat values (Cp and Cv) for petrol and air, emphasizing their importance in thermodynamic calculations. It notes that the Cp value can vary depending on the blend of petrol and the fuel-to-air ratio, while the Cv value remains less discussed. Participants mention the need to calculate the specific heat ratio using gamma = 1.3 as a polytropic constant. The conversation highlights the technical complexity involved in obtaining accurate values for both Cp and Cv. Accurate calculations are essential for understanding thermodynamic processes involving these substances.
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what are the Cp and Cv values of petrol and air?
 
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Use gamma = 1.3 for the polytropic constant.

Note: If you aren't using the cp and cv values to find this, ignore the above. If you are congratulate me for being clairvoyant.
EDIT: It also depends on the blend of petrol and the fuel to air ratio (if you want to get technical and accurate)
 
Gee thanks! but that's only the Cp value. what about the Cv value?
and yes i have to calculate specific heat ratio
 
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