Find the Temperature at Which K_p = 4 $\Delta$ H°_f = 33

Multiple Choice

Find the temperature at which K_p = 4.00 for the reaction N₂O₄(g) 2NO₂(g) .[Given: at 25°C, for NO₂(g) , $\Delta$ H°_f = 33.85 kJ/mol, S° = 240.46 J/mol·K; for N₂O₄(g) , $\Delta$ H°_f = 9.66 kJ/mol, S° = 304.3 J/mol·K; assume that $\Delta$ H° and $\Delta$ S° are independent of temperature.]

A) 197 °C
B) 56 °C
C) 36 °C
D) 79 °C
E) 476°C