7.4 TEORI PERLANGGARAN

7.4 TEORI PERLANGGARAN

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Assessment

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Guru Moe

Chemistry

10th - 12th Grade

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12 questions

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1.

Multiple Select

5 mins

1 pt

The Kinetic Theory of Matter states that particles in matter are always moving. Which of the following statements are CORRECT?

Teori Kinetik Jirim menyatakan zarah di dalam jirim sentiasa bergerak. Antara berikut, yang manakah pernyataan yang BETUL?

Particles in a solid move freely.

Zarah di dalam pepejal bergerak bebas.

Collisions between particles are random.

Perlanggaran antara zarah adalah rawak.

The kinetic energy of the particle increases with increasing temperature.

Tenaga kinetik zarah bertambah dengan peningkatan suhu.

At a constant temperature, all particles move with the same velocity.

Pada suhu tetap, semua zarah bergerak dengan halaju yang sama.

2.

Multiple Select

5 mins

1 pt

Based on Collision Theory, a chemical reaction occurs when particles of a reacting substance ...

Berdasarkan Teori Perlanggaran, suatu tindak balas kimia berlaku apabila zarah bahan tindak balas ...

have high kinetic energy

mempunyai tenaga kinetik yang tinggi

collide in the correct orientation

berlanggar pada orientasi yang betul

has a low activation energy

mempunyai tenaga pengaktifan yang rendah

collide with each other

berlanggar satu sama lain

3.

Multiple Select

5 mins

1 pt

Which of the following statements explains an effective collision?

Antara pernyataan berikut, yang manakah menjelaskan perlanggaran berkesan?

Collisions that result in a reaction.

Perlanggaran yang menghasilkan hasil tindak balas.

A reaction whose energy is equal to the activation energy.

Tindak balas yang mana tenaganya sama dengan tenaga pengaktifan.

Collisions that have low energy.

Perlanggaran yang mempunyai tenaga yang rendah.

A reaction whose energy is less than the activation energy.

Tindak balas yang mana tenaganya kurang daripada tenaga pengaktifan.

4.

Multiple Choice

5 mins

1 pt

Which factors DO NOT affect the rate of reaction?

Faktor manakah yang TIDAK mempengaruhi kadar tindak balas?

Reaction temperature

Suhu tindak balas

Volume of the reactants

Isipadu bahan tindak balas

Concentration of reactants

Kepekatan bahan tindak balas

Size of reactants

Saiz pepejal bahan tindak balas

5.

Multiple Choice

5 mins

1 pt

Media Image

The diagram shows the energy level profile for ...

Rajah menunjukkan profil aras tenaga untuk ...

Exothermic reaction

Tindak balas eksotermik

Endothermic reaction

Tindak balas endotermik

6.

Multiple Select

5 mins

1 pt

Media Image

The diagram shows the energy level profile of reaction X. Which of the following is the CORRECT statement about the reaction?

Rajah menunjukkan profil aras tenaga bagi tindak balas X. Antara berikut, yang manakah pernyataan yang BETUL mengenai tindak balas tersebut?

ΔH = +50 kJmol\Delta H\ =\ +50\ \frac{kJ}{mol}

ΔH = 50 kJmol\Delta H\ =\ -50\ \frac{kJ}{mol}

Releases heat to the environment.

Membebaskan haba ke persekitaran.

Absorbs heat from the environment.

Menyerap haba daripada persekitaran.

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