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Standard molar entropies of Mg((s)) , C(...

Standard molar entropies of `Mg_((s)) , C_((s)), MgO_((s)) & CO_((g))` respectively are `S_1,S_2,S_3, & S_4 J//K//mol`. Then `DeltaS_("sys")` for `MgO_((s)) + C_((s)) rarr Mg_((s)) + CO_((g))`

A

`S_1 + S_2 + S_3 + S_4`

B

`(S_1 + S_4) - (S_2 + S_3)`

C

`(S_2 + S_3) - (S_1 + S_4)`

D

`(S_4 - S_3)`

Text Solution

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The correct Answer is:
B
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