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Topic: Heat capacity function in Lab  (Read 3221 times)

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Offline SheffieldWednesday4ever

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Heat capacity function in Lab
« on: February 21, 2010, 03:26:35 AM »
C(p,m,Pb)=A0+A1T+A2T2+A3T3
I have a lab and it gives you a set of experimental data with C(p,m,Pb)=23.3 T=70K
C(p,m,Pb)=24.5 T=100K, C(p,m,Pb)=25.3 T=150K, C(p,m,Pb)=25.8 T=200K, C(p,m,Pb)=26.2 T=250, C(p,m,Pb)=26.6 T=298

Now, it says using the function above, fit the data using excel to a cubic polynomial function.

In lecture, I've seen the function used before. But the constants were given. Is there a way to compute and get the constants? on excel?

Thanks

Offline sjb

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Re: Heat capacity function in Lab
« Reply #1 on: February 21, 2010, 10:02:31 AM »
Don't know if something like http://web.mit.edu/10.213/www/extra/solvecubic.pdf will help?

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