Write structure of cyclopentanone.

Answer

A

Explanation

`Delta_(f)S^(@)(NH_(4)Cl,s)"at 300 K"`
`=S_(NH_(4)Cl(s))^(@)-[(1)/(2)S_(N_(2))^(@)+2S_(H_(2))^(@)+(1)/(2)S_(Cl_(2))^(@)]`
`=-374 " JK"^(-1)//"mol"^(-1)`
`because" "Delta_(r)C_(p)=0`
`therefore" "Delta_(f)S_(310)^(@)=Delta_(f)S_(300)^(@)`
`=-374JK^(-1)mol^(-1)`
`Delta_(f)G_(310)^(@)=Delta_(f)H_(300)^(@)=-314.5`
`Delta_(f)G_(310)^(@)=Delta_(f)H^(@)-310DeltaS^(@)`
`=-314.5-(310(-374))/(1000)`
`=-198.56kJ//mol`