Page 43 - Hybrid PBD 2022 Tg 5 - Kimia
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Kimia Tingkatan 5 Bab 3
4. Jalankan eksperimen di bawah tentang haba pembakaran. SP 3.2.4 TP3 TP4 KBAT Mengaplikasi & Menganalisis
Carry out the experiment below about heat of combustion. Konsep Visual
Haba Pembakaran Pelbagai Alkohol
Heat of Combustion of Various Alcohols
Eksperimen
Eksperimen
Tujuan / Aim:
Untuk menentukan haba pembakaran pelbagai jenis alkohol.
To determine the heat of combustion of various alcohols.
Pernyataan masalah / Problem statement:
Penerbitan Pelangi Sdn Bhd. All Rights Reserved
Adakah bilangan atom karbon per molekul alkohol mempengaruhi haba pembakaran?
Does the number of carbon atoms per molecule of alcohol affect the heat of combustion?
Hipotesis / Hypothesis:
Semakin bertambah bilangan atom karbon per molekul alkohol, semakin tinggi haba pembakaran.
The higher the number of carbon atoms per molecule of alcohol, the higher the heat of combustion.
Pemboleh ubah / Variables:
(a) Dimanipulasikan : Jenis alkohol / Type of alcohol
Manipulated
(b) Bergerak balas : Haba pembakaran / Heat of combustion
Responding
(c) Dimalarkan : Isi padu air / Volume of water
Fixed
Bahan / Materials:
Metanol, etanol, propanol, butanol, dan air.
Methanol, ethanol, propanol, butanol and water.
Radas / Apparatus:
Bekas kuprum, tungku kaki tiga, silinder penyukat, termometer, pelita, penimbang elektronik, pengadang
angin, dan bongkah kayu.
Copper can, tripod stand, measuring cylinder, thermometer, spirit lamp, electronic balance, windshields and wooden block.
Susunan radas / Set-up of apparatus:
Pengadang angin Termometer
Windshield Thermometer Haba Pembakaran
Heat of Combustion
Tin kuprum INFO
Copper can Air
Water
Haba Pembakaran
Alkohol
Alcohol (Eksperimen)
Heat of Combustion
VIDEO (Experiment)
Prosedur / Procedure:
1. Tuang 200 cm air ke dalam tin kuprum.
3
Pour 200 cm of water into a copper can.
3
2. Masukkan termometer. Rekodkan suhu awal, t 1 °C.
Put in a thermometer. Record the initial temperature, t 1 °C.
3. Letakkan tin kuprum di atas tungku kaki tiga.
Put the copper can on top of the tripod stand.
© Penerbitan Pelangi Sdn. Bhd. 114
03 Hybrid Kimia Tg5.indd 114 05/11/2021 4:18 PM
