التحقق من قانون بويل

إظهار العلاقة العكسية بين الضغط والحجم

Gas Laws Intermediate (High School) 40 دقيقة ~$15,00

الهدف

التحقق من قانون بويل (P1V1 = P2V2) بقياس حجم غاز محبوس عند ضغوط مختلفة.

الخلفية

Boyle's law states that at constant temperature, the pressure and volume of a gas are inversely proportional. This experiment uses a closed syringe or J-tube manometer to measure gas volume at different pressures and confirm the relationship.

تحذيرات السلامة

  • Do not apply excessive pressure to glass apparatus
  • Ensure all connections are airtight

معدات الوقاية الشخصية المطلوبة

goggles

المواد

  • Boyle's law apparatus or large syringe (1)
    60 mL syringe works
  • Pressure gauge (1)
    Or manometer
  • Rubber tubing (30 cm)
  • Graph paper (2 sheets)

المعدات

Retort stand and clamp Weights or books for applying pressure Ruler

الإجراء

1

Set up the Boyle's law apparatus with a known volume of trapped air. Record the initial pressure and volume.

5 دقيقة
2

Increase the pressure by adding mercury or pushing the syringe. Record the new pressure and volume.

5 دقيقة Do not force the syringe
3

Take at least 8 readings at different pressures, both increasing and decreasing.

15 دقيقة
4

Calculate PV for each reading. They should all be approximately equal.

5 دقيقة
5

Plot P vs V (hyperbola) and P vs 1/V (straight line through origin) graphs.

8 دقيقة

النتائج المتوقعة

The product PV should remain approximately constant (within 5% experimental error). The P vs 1/V graph should be a straight line through the origin, confirming the inverse proportionality.

التنظيف

Return apparatus to storage. Dispose of graph paper drafts.

التفاصيل

الفئة
Gas Laws
الصعوبة
Intermediate (High School)
المدة
40 دقيقة
التكلفة التقديرية
$15,00
الخطوات
5
المواد
4

مزيد من التجارب

اختبار CO₂ وماء الجير 20 min الحجم المولي للغاز عند الظروف القياسية 35 min الغواص الديكارتي 15 min جمع غاز الهيدروجين 35 min ضغط البخار ونقطة الغليان 45 min قانون شارل مع بالون 30 min قياس حجم غاز مع المغنيسيوم 40 min مقارنة معدل الانتشار (قانون غراهام) 30 min

Frequently Asked Questions

What is the objective of التحقق من قانون بويل?
التحقق من قانون بويل (P1V1 = P2V2) بقياس حجم غاز محبوس عند ضغوط مختلفة.
How difficult is التحقق من قانون بويل?
This experiment is rated as Intermediate (High School). It takes approximately 40 minutes to complete.
What safety precautions are needed for التحقق من قانون بويل?
Key safety precautions include: Do not apply excessive pressure to glass apparatus; Ensure all connections are airtight.
What materials are needed for التحقق من قانون بويل?
The main materials required are: Boyle's law apparatus or large syringe, Pressure gauge, Rubber tubing, Graph paper.
What results should I expect from التحقق من قانون بويل?
The product PV should remain approximately constant (within 5% experimental error). The P vs 1/V graph should be a straight line through the origin, confirming the inverse proportionality.