
TERMOKIMIA / THERMOCHEMISTRY
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
SITI ROSSHIDA Moe
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15 questions
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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
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
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
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
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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