1. Consider the reactions at \( 300 K \Delta H \) \( 4 NO _{2}( g )+ O _{2}( g ) \rightarrow 2 N _{2} O _{5}( g ) ; \Delta H =-111 kJ \) \( 4 NO _{2}( g )+ O _{2}( g ) \rightarrow 2 N _{2} O _{5}( s ) ; \Delta H =-219 kJ \)
Thus, entropy change for the sublimation of \( N _{2} O _{5}( s ) \) is
(I) \( 180 J mol ^{-1} K ^{-1} \)
(2) \( 360 J mol ^{-1} K ^{-1} \)
(3) -360 \( J mol ^{-1} \)
(4) \( -180 J mol ^{-1} K ^{-1} \)
