[plasticfood]

oh crap i forgot to convert my temps to kelvin, hold on..

[UG]

My line of best fit came out at y = -7896.2x + 4.0345
The two methods produce similar results

[plasticfood]

ok i regraph mine b/c i forgot to convert my temps to kelvin :p

i got y = -7904.2x + 4.0493

delta H = 65715.52
delta S = 33.67

mmm it's the same thing but the negatives are reverse.

[UG]

Don't think anything is wrong, the slope of my first graph should be -ΔS so then ΔS works out to be positive. Plus I used 273.15 K and 373.15 K for the temperature and didn't round anything so our numbers are bound to be slightly different

[plasticfood]

mmm that's strange, but what about the second graph? the y-intercept is positive, so delta S should be positive.   

[UG]

Yes, ΔS is meant to be positive, you can just work it out by 4.0345*8.314 = 33.54 J K^-1 mol^-1
Its just that the equation for my first graph is ΔG = ΔH - TΔS the slope should be -ΔS. When I plotted it, the slope came out as -33.54 so this is equal to -ΔS hence ΔS is 33.54, same as calculated above.

[plasticfood]

ok thanks again for helping me out!!