Page 56 - Hybrid PBD 2022 Tg 4 - Kimia

Kimia Tingkatan 4 Bab 2
Bahagian C

3. (a) Rajah 3 menunjukkan perubahan keadaan jirim apabila ais dipanaskan sehingga 100 °C.
Diagram 3 shows the change of state of matter when ice is heated up to 100 °C.

Dipanaskan sehingga 100 °C
Heated untill 100 °C

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Ais Air
Ice Water
Rajah 3 / Diagram 3

(i) Berdasarkan Rajah 3:
Based on Diagram 3:
• Lukis susunan zarah bagi ais dan air
Draw the particle arrangement for ice and water
• Nyatakan cara susunan zarah dalam ais dan air
State the arrangement of particles in ice and water
• Nyatakan pergerakan zarah bagi ais dan air
State the movement of particles for ice and water
• Nyatakan tenaga kinetik bagi ais dan air
State the kinetic energy for ice and water
[8 markah / 8 marks]
(ii) Lakarkan graf suhu melawan masa bagi pemanasan ais tersebut daripada 0 °C hingga 100 °C.
Sketch a graph of temperature against time for heating the ice from 0 °C to 100 °C.
[2 markah / 2 mark]
(b) Naftalena melebur apabila dipanaskan. Takat lebur bagi naftalena ialah 80 °C. Huraikan satu eksperimen
untuk menentukan takat lebur naftalena di makmal. Huraian anda perlu mengandungi rajah susunan
radas dan bahan yang berlabel serta graf penyejukan naftalena.
Naphthalene melts when heated. The melting point of naphthalene is 80 °C. Describe an experiment to determine the melting point
of naphthalene in the laboratory. Your description should include a labeled diagram of apparatus set-up and a cooling curve of
naphthalene.
[10 markah / 10 marks]

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02 Bab 2.indd 34 10/29/21 5:13 PM