Two moles of an ideal gas undergo free expansion from 10 L to 100 L at 300 K. The values of S system and S surroundings are (R is universal gas constant)

1. A. S system = 0 ; S surroundings = 0
2. B. S system = 4.606 ,R ; S surroundings = -4.606 ,R
3. C. S system = 0 ; S surroundings = 4.606 ,R
4. D. S system = 4.606 ,R ; S surroundings = 0

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