Hi folks, i can't solve this:

calculate the enthalpy change (dH) for 1mol ideal gas, when it changes from 27°C/1atm to 327°C/17atm.

The heat capacity is given as C_{p,m} = 20,9+0,042T/K (Unit = JK^{-1}mol^{-1})

Solution: dH = 1,19*10^{4}J

I tried to find the right formular:

C_{p,m} = a +bT+c/T^{2} (from atkins)

and because there is no c/T^{2} Term, i changed it into:

dH = Integral(from T1 to T2) of: (a +bT)

--> dH= a(T1-T2)+0,5*b*((T2)^{2} - (T1)^{2})

now if i put the values into the formular i dont get the right value...

can you please help me?