Page 75 - Hybrid PBD 2022 Tg 4 - Kimia

Kimia Tingkatan 4 Bab 7

(e) (i) Tulis persamaan kimia bagi Set I.
Write the chemical equation for Set I. [2 markah / 2 marks]
(ii) Tindak balas antara serbuk zink dengan asid sulfurik ialah tindak balas eksotermik.
Lukis gambar rajah profil tenaga bagi Set I. Label tenaga pengaktifan, E dan haba tindak balas, ΔH.
The reaction between zinc powder and sulphuric acid is an exothermic reaction. a
Draw the energy profile diagram for Set I. Label activation energy, E and heat of reaction, ΔH.
a
[3 markah / 3 marks]

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Kriteria Kejayaan:
Saya berjaya
• menghuraikan teori perlanggaran.
• menjelaskan dengan contoh tenaga pengaktifan.
• mentafsir gambar rajah profil tenaga bagi tindak balas eksotermik dan endotermik.

Pentaksiran Sumatif
SPM

GURU Praktis PdPR GURU Jawapan
GURU
GURU
Bab 7
Praktis PdPR Bab 7
Kertas 1 3. Rajah 1 menunjukkan lengkung Set I dan Set II.
Diagram 1 shows the curves of Set I and Set II.
3
Isi padu gas (cm )
1. Antara yang berikut, yang manakah bukan unit Volume of gas (cm )
3
bagi kadar tindak balas?
Which of the following is not the unit for the rate of reaction? I
A g s –1 II
B kg s –1
C cm s –1 Masa (s)
3
–3
D mol dm s Time (s)
Rajah 1 / Diagram 1
2. Antara yang berikut, yang manakah kadar tindak Pernyataan manakah yang betul?
balas paling rendah? Which statement is correct?
Which of the following has the lowest rate of reaction? A Tindak balas Set I lebih laju.
A Electrolytic reaction Reaction for Set I is faster.
Tindak balas elektrolisis B Kadar tindak balas bagi Set II lebih tinggi.
B Pembakaran gas Rate of reaction for Set II is higher.
Combustion of gas C Tindak balas Set I ialah eksotermik.
C Penapaian Reaction for Set I is exothermic.
Fermentation D Tindak balas Set II ialah endotermik.
D Letupan Reaction for Set II is endothermic.
Explosion

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07 Bab 7.indd 182 10/29/21 5:19 PM