

Laju Reaksi
Presentation
•
Chemistry
•
2nd Grade
•
Hard
Vincentius Yunianto Utomo
Used 2+ times
FREE Resource
6 Slides • 0 Questions
1
KECEPATAN REAKSI
2
Bagaimana kecepatan seorang pelari dihitung ?
Buktikan dengan perhitungan !
Seorang pelari mencapai jarak 54 meter dalam waktu 6 detik.
a. Berapa kecepatan pelari tersebut ?
b. Jika pelari tersebut berlari dengan kecepatan konstan, berapa waktu yang diperlukan untuk mencapai jarak 99 m ?
3
Perhitungan
4
Reaksi kimia juga memiliki kecepatan masing-masing.
Manakah yang lebih cepat terbakar, bensin atau kertas ?
Bagaimanakah dengan kecepatan suatu reaksi ?
Hal apa saja yang menjadi masalah kalian untuk mempelajari kecepatan reaksi !
5
Grafik [A] turun = konsentrasi A berkurang
Grafik [B] naik = konsentrasi B bertambah
Mengapa persamaan laju (v) untuk A bertanda - (minus) ?
Pengertian
Laju Reaksi
6
DATA KONSENTRASI
ZAT A (PEREAKSI) & ZAT B (PRODUK)
A -----> 2 B
No | [A] | Δ [A] | [B] | Δ [B] |
|---|---|---|---|---|
1 | 1 mol/L | - 0,5 mol/L | 0 mol/L | 1 mol/L |
2 | 0,5 mol/L | - 0,4 mol/L | 1 mol/L | 0,8 mol/L |
3 | 0,1 mol/L | | 1,2 mol/L | |
KECEPATAN REAKSI
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