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THERMOCHEMISTRY (TERMOKIMIA)


-Termokimia adalah kajian perubahan haba terhadap tindak balas kimia.

- Terdapat 2 jenis tindak balas kimia iaitu:
  1. Tindak balas Eksotermik - Ekso bermaksud luar manakala termik bermaksud haba.Eksotermik bermaksud haba yang disalurkan/dibebaskan keluar ke persekitaran dalamsistem. Oleh itu suhu di persekitaran akan meningkat.

  2. Tindak balas Endotermik- Endo bermaksud dalam manakala termik bermaksud haba.Endotermik bermaksud haba yang diserap masuk ke dalam dalam bahan hasil tindak balas. Oleh itu suhu bahan tindak balas akan meningkat.

  1. Tindak balas eksotermik:

  • Perubahan tenaga tindak balas Eksotermik akan menunjukkan nilai negatif
  • Perubahan Tenaga = Tenaga Hasil Tindak Balas - Tenaga Bahan Tindak Balas
  • ΔH = Hh - Hb


Tindak balas Endotermik

  • Perubahan tenaga tindak balas Endotermik akan menunjukan nilai positif, iaitu
  • Perubahan Tenaga = Tenaga Hasil Tindak Balas - Tenaga Bahan Tindak Balas
  • ΔH = Hh - Hb







VIDEO ANIMASI TERMOKIMIA

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