Consider the following reaction : 2 A ( g ) + B ( g ) 2 D ( g ) U = -10 kJ mol -1 and S = -44 JK -1 at 298 K. Identify the correct option with G for the reaction and spontaneity of the reaction at 298 K. (Given : R = 8.31 J mol -1 K -1 )

1. A. +0.63568 kJ mol -1 , non-spontaneous
2. B. -0.63568 kJ mol -1 , spontaneous
3. C. -1.635 kJ mol -1 , spontaneous
4. D. +1.635 kJ mol -1 , non-spontaneous

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