Please could some help me in answering this question. Ianswered C pm =-b + c/T,

Question

Please could some help me in answering this question. Ianswered Cpm =-b + c/T, which was wrong. Here is the question:
A common method for representing heat capacity datais
Cp,m = a + bt +c/T2 where a, b, and c are constantsfound by fitting data to the equation.
Find a general expressionfor Cpm, the uncertainty in the value forheat capacity, as a function of T and/or constants. Usethe results and the above equation toCp,m and Cp,m forgraphite at T = 300.0 K and T = 1000.0 K. Notethat for graphite a = 16.86 J/mol K, b = 4.77 x10-3 J/mol K2, and c = -8.54 x105 J K/mol. Treat a, b, and c if they areexact.
Any help would be greatlyappreciated. If you help me then I'll give u a rating of lifesaverIMMEDIATELY!

A common method for representing heat capacity datais
Cp,m = a + bt +c/T2 where a, b, and c are constantsfound by fitting data to the equation.
Find a general expressionfor Cpm, the uncertainty in the value forheat capacity, as a function of T and/or constants. Usethe results and the above equation toCp,m and Cp,m forgraphite at T = 300.0 K and T = 1000.0 K. Notethat for graphite a = 16.86 J/mol K, b = 4.77 x10-3 J/mol K2, and c = -8.54 x105 J K/mol. Treat a, b, and c if they areexact.
Any help would be greatlyappreciated. If you help me then I'll give u a rating of lifesaverIMMEDIATELY!

Explanation / Answer

Tough problem, but I will do the best I can. Use the values for each variable listed at the bottom and plug them in for the equation, then solve. Solve for both 300 and 1000 K. After that, compare the results in the final equation, and rewrite the equation at the top to display what it should be written as for graphite.

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