Hukum Charles dengan Balon

Mengukur perubahan volume gas dengan suhu

Gas Laws Beginner (Middle School) 30 menit ~$5,00

Tujuan

Demonstrasikan hukum Charles dengan mengukur keliling balon berisi udara pada suhu berbeda.

Latar Belakang

Charles's law states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature (Kelvin). By heating and cooling a balloon and measuring its size, the linear relationship between V and T can be confirmed.

Peringatan Keselamatan

  • Handle hot water carefully
  • Do not use boiling water directly on the balloon

APD yang Diperlukan

goggles

Bahan

  • Latex balloons (3)
    Same size
  • String (1 m)
    For measuring circumference
  • Ice (1 kg)
  • Hot water (2 L)
    Various temperatures

Peralatan

Large containers (3) Thermometer Ruler or tape measure Timer

Prosedur

1

Inflate a balloon to a moderate size and tie it off. Measure its circumference at room temperature with string.

3 menit
2

Prepare three water baths: ice water (~5°C), room temperature (~22°C), and hot water (~60°C).

5 menit Handle hot water carefully
3

Submerge the balloon in ice water for 5 minutes. Remove and quickly measure circumference. Record temperature.

7 menit
4

Return the balloon to room temperature water for 5 minutes. Measure circumference.

7 menit
5

Submerge in hot water for 5 minutes. Measure circumference. Record temperature.

7 menit
6

Convert temperatures to Kelvin. Plot V (proportional to circumference³) vs T(K). Extrapolate to find absolute zero.

5 menit

Hasil yang Diharapkan

The balloon should be visibly smaller in ice water and larger in hot water. Plotting estimated volume vs absolute temperature should give a straight line. Extrapolating to zero volume should approximate -273°C (absolute zero).

Pembersihan

Drain water baths. Pop and dispose of balloons. Clean up any spills.

Detail

Kategori
Gas Laws
Tingkat Kesulitan
Beginner (Middle School)
Durasi
30 menit
Perkiraan Biaya
$5,00
Langkah
6
Bahan
4

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Frequently Asked Questions

What is the objective of Hukum Charles dengan Balon?
Demonstrasikan hukum Charles dengan mengukur keliling balon berisi udara pada suhu berbeda.
How difficult is Hukum Charles dengan Balon?
This experiment is rated as Beginner (Middle School). It takes approximately 30 minutes to complete.
What safety precautions are needed for Hukum Charles dengan Balon?
Key safety precautions include: Handle hot water carefully; Do not use boiling water directly on the balloon.
What materials are needed for Hukum Charles dengan Balon?
The main materials required are: Latex balloons, String, Ice, Hot water.
What results should I expect from Hukum Charles dengan Balon?
The balloon should be visibly smaller in ice water and larger in hot water. Plotting estimated volume vs absolute temperature should give a straight line. Extrapolating to zero volume should approximate -273°C (absolute zero).