
THERMOKIMIA
Presentation
•
Chemistry
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11th Grade
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Practice Problem
•
Medium
Akhmad Jamil
Used 11+ times
FREE Resource
16 Slides • 2 Questions
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by Akhmad Jamil
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Sistem adalah segala sesuatu yang dipelajari perubahan energinya.
Lingkungan adalah segala yang berada di sekeliling sistem.
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Perubahan ini dapat ditulis dalam suatu persamaan reaksi yang disebutpersamaan termokimia sebagai berikut :
Sekedar mengingat untuk reaksi
a. Reaksi eksoterm : Perubahan entalpi bertanda negatif
b. Reaksi indoterm : Perubahan entalpi bertanda positif
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Multiple Choice
suhu dan volum
tekanan dan suhu
jumlah dan wujud zat
jumlah zat dan kalor yang dibebaskan
kalor yang dibebaskan
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Multiple Choice
Reaksi yang mempunyai harga delta HR = delta Hof CO adalah . . . .
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Contoh :
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2. Dengan diagram
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3 .Dengan melihat data entalpi pembentukan standar
Perubahan entalpi hanya bergantung pada keadaan awal dan keadaan akhir reaksi (Hukum Hess)
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4. Penentuan (H Berdasarkan Energi Ikatan
Jumlah energi yang diperlukan untukmemutuskan ikatan antaratom dalam 1 mol molekul berwujud gas disebut energiikatan. Makin kuat ikatan makin besar energi yang diperlukan.
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by Akhmad Jamil
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