Question: A mixture contains 20% O2 with CP = 10 J/oC, 30% N2 with CP = 20 J/oC and 50% CO2 with CP= 40 J/oC, what is the average CP of mixture?

Options

A : 20 J/oC

B : 28 J/oC

C : 34 J/oC

D : 42 J/oC

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