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Calculate the standard entropy of formation `DeltaS_(f)^(@) " of "CO_(2_((g)))` . Given the standard entropies of `CO_(2_((g))),C_((s)),O_(2_((g)))` as `218.8,8.740and 205.60Jk^(-1)` respectively .

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`C+O_(2)rarrCO_(2)" "DeltaS_(f)^(@)=? `
`DeltaS_(f)^(@),CO_(2)=sumS_("compound")^(@)-sumS_("elements")^(@)`
`=218.8-(8.74+205.60)`
`DeltaS_(f)^(@),CO_(2)=4.46Jk^(-1)`
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