Computing Gas Heat Capacity

There are standard equations for calculating the heat capacity $($specific heat$)$ of a gas at a specified temperature, One common form of a heat$-$capacity equation is a simple third$-$order polynomial in $T_{-1}^1$

$C_p=a+bT+c{T}^2+d{T}^2$

If the coefficients $a,b,c,$ and $d$ are known for a particular gas, you can calculate the heat capacity of the gas at any $T($within an allowable range$).$ The coefficients for a few common gases are listed in the following table.

$\backslash$table$[[$Heat Capacity Coefficients$],[$Gas$,$a$,$b$,$c$,$d$,$Units on $T,$Valid Aange$],[$Air$,28\mathrm{.}94{10}^{-3},0\mathrm{.}4147{10}^{-5},0\mathrm{.}3191{10}^{-8},-1\mathrm{.}965{10}^{-12},C,0-1500C$ Please solve problem in excel