For a given reaction $\mathrm{\Delta }H=35.5\mathrm{kJ}{\mathrm{mol}}^{-1}$ $\mathrm{\Delta }S=83.6{\mathrm{JK}}^{-1}{\mathrm{mol}}^{-1}$

The reaction is spontaneous at 

(Assume that $∆H$ and$∆S$ do not vary with temperature)