

Termokimia
Presentation
•
Chemistry
•
11th Grade
•
Hard
Sri Mahyuni
FREE Resource
6 Slides • 0 Questions
1
Termokimia
by Sri Mahyuni
2
Hukum Kekekalan Energi
Hukum Termodinamika I : "Energi tidak dapat diciptakan atau dimusnahkan, akan tetapi dapat diubah dari bentuk satu menjadi bentuk lain".
Dalam reaksi-reaksi kimia energi dinyatakan dengan istilah entalpi (H).
Entalpi suatu zat tidak dapat diukur,
​
3
Reaksi eksoterm dan reaksi endoterm
Reaksi eksoterm adalah reaksi yang melepaskan panas
Reaksi endoterm adalah reaksi yang menyerap panas
4
Sistem dan Lingkungan
1. Sistem terbuka
2. Sistem tertutup
3. Sistem terisolasi
5
Macam-macam perubahan entalpi:
6
Kalorimetri
Entalpi reaksi dapat ditentukan dengan 4 cara:
1. Kalorimetri
2. Hukum Hess
3. Data entalpi pembentukan
4. Data energi ikatan
Termokimia
by Sri Mahyuni
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