Calculate ΔSo at 319 K in J/K.

Question

A particular reaction has a ΔH^o value of -193 kJ and ΔG^o of -187 kJ at 319 K. Calculate ΔS^o at 319 K in J/K.

The correct answer is -18.81. I am not sure why I keep getting positive 18.81

Answer 1

G = ∆H - T ∆S

-187 kJ = -193 kJ - 0.319(∆S)

-187 = -193 - 319∆S

6 = -0.319∆S

∆S = 6/-0.319 = -18.81