TERMOKIMIA / THERMOCHEMISTRY

TERMOKIMIA / THERMOCHEMISTRY

11th Grade

15 Qs

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TERMOKIMIA

TERMOKIMIA

11th Grade

10 Qs

TERMOKIMIA / THERMOCHEMISTRY

TERMOKIMIA / THERMOCHEMISTRY

Assessment

Quiz

Chemistry

11th Grade

Practice Problem

Hard

Created by

SITI ROSSHIDA Moe

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Antara berikut, tindak balas yang manakah menyerap haba dari persekitaran?

Which of the following reaction absorbs heat from the surroundings?

Menambahkan alkali kepada asid

Adding alkali to acid

Menambahkan pepejal ammonium klorida, NH4Cl ke dalam air, H2O

Adding solid ammonium chloride, NH4Cl in water, H2O

Menambahkan pepejal kalsium klorida kontang, CaCl2 ke dalam air, H2O

Adding solid anhydrous chloride, CaCl2 in water, H2O

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Rajah menunjukkan susunan radas bagi menentukan haba pembakaran etanol, C2H5OH. Diagram shows the experimental set-up to determine the heat of combustion of ethanol, C2H5OH.

Apakah X dan Y?

What is X and Y?

X: Etanol, Y: Air

X: Ethanol, Y: Water

X: Air, Y: Etanol

X: Water, Y: Ethanol

X: Naftalena, Y: Air

X: Naphthalene, Y: Water

X: Air, Y: Naftalena

X: Water, Y: Naphthalene

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Antara berikut yang manakah maksud haba penyesaran?

Which of the following is the meaning of the heat of displacement?

Perubahan haba apabila 1 mol halogen disesarkan oleh larutan halidanya

Heat change when 1 mole of halogen is displaced from its halide solution

Perubahan haba apabila 1 mol ion dihasilkan daripada logamnya

Heat change when 1 mole of ion is produced from its metal

Perubahan haba apabila 1 mol logam disesarkan daripada larutan garamnya

Heat change when 1 mole of metal is displaced from its salt solution

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Persamaan termokimia yang berikut menunjukkan tindak balas antara natrium sulfat dan barium klorida.

The following thermochemical equation shows reaction between sodium sulphate and barium chloride.

Antara yang berikut, manakah dipadankan dengan betul?

Which of the following matches is true?

Perubahan tenaga/ Change of energy

Pembentukan ikatan adalah lebih tinggi daripada pemecahan ikatan

Bond formation is greater than bond breaking

Jenis tindak balas/ Type of reaction

Eksotermik

Exothermic

Perubahan tenaga/ Change of energy

Pemecahan ikatan adalah lebih tinggi daripada pembentukan ikatan

Bond breaking is greater than bond formation

Jenis tindak balas/ Type of reaction

Eksotermik

Exothermic

Perubahan tenaga/ Change of energy

Pemecahan ikatan adalah lebih tinggi daripada pembentukan ikatan

Bond breaking is greater than bond formation

Jenis tindak balas/ Type of reaction

Endotermik

Endothermic

Perubahan tenaga/ Change of energy

Pembentukan ikatan adalah lebih tinggi daripada pemecahan ikatan

Bond formation is greater than bond breaking

Jenis tindak balas/ Type of reaction

Endotermik

Endothermic

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Persamaan termokimia yang berikut menunjukkan pemendakan plumbum (II) sulfat.

The following thermochemical equation shows the precipitation of lead (II) sulphate.

Dalam persamaan di atas,

In the reaction above,

Jumlah kandungan tenaga bahan tindak balas adalah lebih tinggi daripada hasil tindak balas

The total energy content of reactants is higher than products

q kJ jumlah tenaga yang diperlukan untuk pembentukan plumbum(II) sulfat, PbSO4

q kJ amount of energy is needed for the formation of lead (II) sulphate, PbSO4

Perubahan suhu bagi tindak balas ialah q

The temperature change for the reaction is q

q ialah jumlah tenaga yang ditukarkan kepada tenaga kimia

q is the amount of energy that is converted to chemical energy

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Rajah 2 menunjukkan kejadian awan yang terbentuk apabila wap air tersejat dari laut.

Diagram 2 shows the formation of clouds when water vapour evaporates from the sea.

Apakah perubahan tenaga haba dan jenis tindak balas yang terlibat ketika air menyejat?

What is the heat energy change and the type of reaction occur when water evaporates?

Perubahan tenaga haba/ Heat energy change

Tenaga haba dibebaskan

Heat energy given out

Jenis tindak balas/ Type of reaction

Endotermik

Endothermic

Perubahan tenaga haba/ Heat energy change

Tenaga haba dibebaskan

Heat energy given out

Jenis tindak balas/ Type of reaction

Eksotermik

Exothermic

Perubahan tenaga haba/ Heat energy change

Tenaga haba diserap

Heat energy absorb

Jenis tindak balas/ Type of reaction

Endotermik

Endothermic

Perubahan tenaga haba/ Heat energy change

Tenaga haba diserap

Heat energy absorb

Jenis tindak balas/ Type of reaction

Eksotermik

Exothermic

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

100 cm3 jus limau kasturi ditambahkan kepada 300 cm3 susu segar. Jika suhu meningkat sebanyak 5oC, hitungkan perubahan haba.

[Muatan haba tentu campuran : x J g-1 oC -1]

100 cm3 of calamansi juice is added to 300 cm3 of fresh milk. If the temperature rises by 5oC, calculate the heat change.

[Specific heat capacity of mixture : x J g-1 oC -1]

80 x J

1600 x J

2000 x J

2500 x J

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