Page 39 - Hybrid PBD 2022 Tg 4 - Kimia

Kimia Tingkatan 4 Bab 2
4. Jalankan aktiviti berikut dan jawab semua soalan. SP 2.1.2 SP 2.1.3 TP5 KBAT Menilai
Carry out the following activity and answer all questions.

AKTIVITI
Tujuan: Menentukan takat lebur dan takat beku naftalena, C H 8 Video
10
GURU
Aim: To determine the melting point and freezing point of naphthalene, C H GURU Eksperimen Takat Lebur dan Takat
10 8 Beku Naftalena
Experiment of Melting Point and
Termometer Freezing Point of Naphthalene
Thermometer
Penerbitan Pelangi Sdn Bhd. All Rights Reserved
Tabung didih
Boiling tube
Termometer
Thermometer
Air
Water Tabung didih
Naftelena Boiling tube
Naphthalene
Kelalang kon
Conical flask
Naftelena
Panaskan Naphthalene
Heat
Pemanasan naftalena, C H 8 Penyejukkan naftalena, C H 8
10
10
Heating of naphtalene, C H Cooling of naphtalene, C H
10 8 10 8
Keputusan / Result:
Pemanasan naftalena Penyejukan naftalena
Heating of naphtalene Cooling of naphtalene
Masa (min) Suhu (°C) Keadaan Masa (min) Suhu (°C) Keadaan
Time (min) Temperature (°C) State Time (min) Temperature (°C) State
0.0 61.0 Pepejal / Solid 0.0 87.0 Cecair / Liquid
0.5 65.0 Pepejal / Solid 0.5 840 Cecair / Liquid
1.0 67.0 Pepejal / Solid 1.0 83.0 Cecair / Liquid
1.5 71.0 Pepejal / Solid 1.5 81.0 Cecair / Liquid

2.0 74.0 Pepejal / Solid 2.0 80.0 Pepejal dan cecair
Solid and liquid

2.5 76.0 Pepejal / Solid 2.5 80.0 Pepejal dan cecair
Solid and liquid
3.0 79.0 Pepejal / Solid 3.0 80.0 Pepejal dan cecair
Solid and liquid

3.5 80.0 Pepejal dan cecair 3.5 80.0 Pepejal dan cecair
Solid and liquid Solid and liquid
4.0 80.0 Pepejal dan cecair 4.0 80.0 Pepejal dan cecair
Solid and liquid Solid and liquid
Pepejal dan cecair Pepejal dan cecair
4.5 80.0 4.5 80.0
Solid and liquid Solid and liquid
Pepejal dan cecair Pepejal dan cecair
5.0 80.0 5.0 80.0
Solid and liquid Solid and liquid
Pepejal dan cecair Pepejal dan cecair
5.5 80.0 5.5 76.0
Solid and liquid Solid and liquid

17 © Penerbitan Pelangi Sdn. Bhd.

02 Bab 2.indd 17 10/29/21 5:13 PM