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For example the equation to do this with Cp (specific heat at constant pressure) is:

Cp = 1.9327e-10*T^4 - 7.9999e-7*T^3 + 1.1407e-3*T^2 - 4.4890e-1*T + 1.0575e+3

Regards,

Gordon.

- Thread starter Gordon Arnaut
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- #1

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For example the equation to do this with Cp (specific heat at constant pressure) is:

Cp = 1.9327e-10*T^4 - 7.9999e-7*T^3 + 1.1407e-3*T^2 - 4.4890e-1*T + 1.0575e+3

Regards,

Gordon.

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siddharth

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- #3

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Yeah, I can get Cv once I know Cp, by subtracting R:

Cv = Cp - R.

I was just wondering if there was an equation because I want to use it in a spreadsheet.

Regards,

Gordon.

- #4

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and the air isn't frozen, nor superheated to some obscene temperature, right? then, is not [itex]C_v[/itex], [itex]C_p[/itex], and [itex]R[/itex] constant with repect to [itex]T[/itex]? i don't follow the premise to your original question.Sorry, forgot to mention the gas is air.

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Cp= Cv + R

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Thanks, Q.

What is the underlying equation?

Regards,

Gordon.

What is the underlying equation?

Regards,

Gordon.

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