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ENERGI KISI

ENERGI KISI. Disusun oleh: Widiyanti (4301410001) Prita Sri Sulastri (4301410017) Puji Rahayu (4301410026) JURUSAN KIMIA FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM UNIVERSITAS NEGERI SEMARANG. ENERGI KISI Adalah :

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ENERGI KISI

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  1. ENERGI KISI Disusun oleh: Widiyanti (4301410001) Prita Sri Sulastri (4301410017) Puji Rahayu (4301410026) JURUSAN KIMIA FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM UNIVERSITAS NEGERI SEMARANG

  2. ENERGI KISI Adalah : ~ energi yang diperlukanuntukmengubah 1 mol senyawaionikpadatanmenjadi ion-ionnyadalamfasa gas ~ energi yang dilepaskanapabila ion (+) dan (-) dalamkeadaan gas berubahmenjadipadatan.

  3. Persamaan Bohr-Lande

  4. + - + - + - r6 r3 r - + - r2 r5 + - +

  5. n tergantungpadakonfigurasielektron ion yang bersangkutan Harga n untukkristalionikselalu > 1 Tabelharga n

  6. Contoh : Na+Cl- 11Na : 1s2 2s2 2p6 3s1 Na+ : 1s2 2s2 2p6 e = 10 Konfigurasi e Na+ = konf. e Ne sehingga n Na+ = 7 17Cl : 1s2 2s2 2p6 3s2 2p5 Cl- : 1s2 2s2 2p6 3s2 2p6 e = 18 Konfigurasi e Cl- = konf. e Arsehingga n Cl- = 9 Jadi, n untukNaCl = (7+9)/2 = 8

  7. Giving its dependence on large contribution coming from nearest neighbours, the Madelung constant increases with coordination number

  8. Born-Mayer equation

  9. The Kapunstinskii Equation The use of the Born-Landé equation requires the knowledge of the structure of the compound (Madelung constant) If the structure of the compound is not known, or the Madelung constant is not available, the Kapustinskii equation can be used to calculate the lattice energy

  10. Born-Haber cycle

  11. SOAL ....

  12. Electron affinity of F Dissociation of F2 Ionization of Li Formation of solid Sublimation of Li ?

  13. Terima Kasih

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