KIMIA BAB 2 TINGKATAN 4: JIRIM DAN STRUKTUR ATOM

Antara yang berikut, yang manakah contoh jirim?

Which of the following is an example of matter?

• Haba / Heat

• Cahaya / Light

• Udara / Air

• Api / Fire

Rajah menunjukkan saling perubahan antara keadaan jirim.

The diagram shows a conversion between states of matter.

Antara berikut, yang manakah betul?

Which of the following is correct?

• Proses P berlaku pada takat lebur / Proses P occurs at melting point

• Haba dibebaskan semasa proses P / Heat is released during process P

• Haba diserap semasa proses R / Heat is absorbed during process R

• Proses Q yang berlawanan adalah pemejalwapan / The reverse process of Q is sublimation

Antara gambar berikut, yang manakah padanan yang betul bagi setiap bahan dan jenis zarahnya?

Which of the following picture is the correct match of each substance and type of its particle?

• A

• B

• C

• D

Pengendapan merupakan satu daripada proses dalam saling perubahan antara keadaan jirim. Antara berikut, yang manakah berlaku semasa proses pengendapan?

Deposition is one of the processes in the conversion between states of matter. Which of the following occur during the deposition process?

I. Haba dibebaskan / Heat is released

II. Tenaga kinetik zarah berkurang / Kinetic energy of particles decreases

III. Jarak di antara zarah semakin jauh / Distance between particles getting further

IV. Pepejal bertukar kepada gas / Solid turns to gas

• I dan/and II

• I dan/and III

• II dan/and IV

• III dan/and IV

Haba diserap atau dibebaskan semasa perubahan keadaan jirim. Berdasarkan gambar, pasangan manakah dipadankan dengan betul?

Heat is absorbed or released during conversion state of matter. Which of the following pairs is correctly matched?

• A

• B

• C

• D

Rajah menunjukkan susunan radas untuk mengkaji takat beku naftalena.

The diagram shows the apparatus set up to study the freezing point of naphthalene.

Mengapakah kelalang kon digunakan dalam aktiviti ini?

Why is the conical flask used in this activity?

• Kelalang kon digunakan untuk memegang tabung didih / Conical flask is used to hold the boiling tube

• Naftalena beracun dan perlu disimpan rapi / Naphthalene is poisonous and needs to be contained

• Takat beku hanya boleh ditentukan di dalam kelalang kon / Freezing point can only be determined inside the conical flask.

• Memastikan proses penyejukan tidak dipengaruhi oleh suhu persekitaran / To ensure the cooling process is not affected by surrounding temperature

Cecair bahan Xdisejukkan daripada suhu 80^oC kepada -2^oC. Bahan X mula membeku pada suhu 0^oC. Antara graf berikut, yang manakah mewakili lengkung penyejukan bahan X?

A liquid of substance X is cooled from 80^oC to -2^oC. Substance X begins to freeze at 0^oC. Which of the following graphs represents the cooling curve for substance X?

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Rajah menunjukkan satu lengkung perubahan keadaan jirim bagi bahan P.

The diagram shows a curve of change in the state of matter for substance P.

Apakah keadaan fizik bagi bahan P dan takat Q dari B ke C?

What is the physical state of substance P and point of Q from B to C?

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