Page 68 - Hybrid PBD 2022 Tg 4 - Kimia

Kimia Tingkatan 4 Bab 7

Mentafsir data / Interpreting data:
1 1
(a) (i) Plotkan graf kepekatan melawan masa . / Plot the graph of concentration against time .
Suhu (°C)
Temperature (°C)
55.0
50.0
45.0
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40.0
35.0
30.0
25.0
20.0
15.0
10.0 1
(s )
–1
5.0 masa
1
(s )
–1
0.01 0.02 0.03 0.04 0.05 0.06 0.07 time
1
(ii) Berdasarkan graf anda, nyatakan hubungan antara suhu larutan natrium tiosulfat dengan .
1 masa
Based on your graph, state the relationship between the temperature of sodium thiosulphate solution with time .
1
Semakin tinggi suhu larutan natrium tiosulfat, semakin tinggi .
masa
1
The higher the temperature of sodium thiosulphate solution, the higher .
time
(b) Tulis persamaan ion bagi tindak balas.
Write the ionic equation for the reaction.
2–
+
S O + 2H ➞ H O + SO + S
2
3
2
2
Kesimpulan / Conclusion:
Semakin tinggi suhu bahan tindak balas, semakin tinggi kadar tindak balas.
The higher the temperature of reactant, the higher the rate of reaction.
D Kehadiran mangkin / Presence of catalyst
Tujuan: Mengkaji kesan kehadiran mangkin ke atas kadar tindak balas.
Aim: To study the effect of presence of catalyst on the rate of reaction.

Kayu uji berbara Kayu uji berbara
Glowing wooden splinter Glowing wooden splinter

O
2
H O 2 H O 2
2
2
MnO
2
Set I / Set I Set II / Set II
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07 Bab 7.indd 175 10/29/21 5:19 PM