Using the standard entropy values nog sdeg 2106 j mol-1

Question

Using the standard entropy values: NO(g), S° = +210.6 J mol-1 K-1 O2(g), S° = +205.0 J mol-1 K-1 NO2(g), S° = +240.5 J mol-1 K-1 calculate the standard entropy change, DeltaS°, for the reaction: NO(g) + ½ O2(g) ® NO2(g): 1) - 72.6 kJ 2) -175.1 kJ 3) -246.1 kJ 4) +246.1 kJ 5) -656.1 kJ