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Thermodynamics
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Digital Jolly Bulb
Item #91-2170
$329.00
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Calculate absolute zero
The Digital Jolly Bulb is a gas law demonstration apparatus designed to show the relationship between pressure and temperature as described by Gay-Lussac’s Law. This modern version of the classic bulb-and-gauge setup features a built-in digital pressure display, allowing students to observe real-time pressure changes as temperature increases or decreases. Ideal for classroom demonstrations or quantitative gas law experiments, the Digital Jolly Bulb makes pressure–temperature investigations clear, visual, and easy to measure.
Why teachers love the Digital Jolly Bulb:
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Crystal-clear data, instantly – The built-in digital display provides direct pressure readings, eliminating parallax errors and helping students focus on how pressure changes with temperature—not struggling to read an analog gauge.
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Engaging, real-time demonstrations – It’s sensitive enough to show a pressure increase from simply holding the bulb, making it perfect for fast, memorable demos that spark curiosity.
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From demo to deep investigation – Submerge the bulb in water baths at different temperatures to collect quantitative data and calculate absolute zero, seamlessly supporting both conceptual understanding and rigorous lab work aligned to Gay-Lussac’s Law.
Product Details
Ideal For These Labs & Investigations
The Digital Jolly Bulb is designed for both qualitative demonstrations and quantitative gas law experiments, including:
- Gay-Lussac’s Law Lab (Pressure vs. Temperature)
- Absolute Zero Determination Lab
- Gas Laws Investigation Stations
- Introductory Pressure–Temperature Relationship Demos
- Kinetic Molecular Theory Explorations
- Real-Time Data Collection & Graphing Activities
- Thermodynamics and Gas Behavior Investigations
Students can submerge the bulb in multiple water baths (ice, room temperature, warm, hot) to collect pressure data, graph pressure vs. temperature (Kelvin), and extrapolate to calculate absolute zero — reinforcing both conceptual understanding and mathematical modeling skills.
Perfect For These Courses
The Digital Jolly Bulb supports curriculum goals across multiple levels:
High School
- Chemistry (CP, Honors, and AP® Chemistry)
- Physics (Thermodynamics units)
- Physical Science
- Integrated Science
- STEM & Engineering Courses
College & University
- General Chemistry I
- Introductory Physics
- Conceptual Physics
- Physical Science for Non-Majors
It aligns especially well with units covering:
- Gas Laws
- Thermodynamics
- Kinetic Molecular Theory
- Properties of Matter
- Scientific Data Collection & Analysis
Skills Students Develop
This apparatus helps students:
- Collect and interpret real-time quantitative data
- Construct and analyze pressure–temperature graphs
- Convert between Celsius and Kelvin
- Apply Gay-Lussac’s Law mathematically
- Extrapolate data to determine absolute zero
- Connect macroscopic measurements to particle-level models
Why Teachers Search for the Digital Jolly Bulb
Educators looking for:
- “Gas laws lab apparatus with digital display”
- “Pressure vs temperature experiment equipment”
- “Absolute zero lab equipment”
- “Gay-Lussac’s Law classroom demonstration”
- “Modern Jolly bulb apparatus”
Product Specifications
What's Included:
- Base Unit
- Glass Bulb
- Tube
- 9 Volt Battery
FAQ
Frequently Asked Questions
What is the Digital Jolly Bulb used for?
The Digital Jolly Bulb is an apparatus used to demonstrate and investigate the pressure–temperature relationship of a gas. It is ideal for Gay-Lussac’s Law labs, absolute zero experiments, and real-time gas law demonstrations.How does the Digital Jolly Bulb demonstrate Gay-Lussac’s Law?
As the temperature of the gas inside the bulb changes (for example, in different water baths), the built-in digital display shows the corresponding change in pressure, allowing students to observe the direct proportional relationship between pressure and temperature in Kelvin.Can students calculate absolute zero with this apparatus?
Yes. By collecting pressure data at multiple temperatures and graphing pressure vs. temperature (in Kelvin), students can extrapolate the data to estimate absolute zero.Is the Digital Jolly Bulb suitable for AP® Chemistry?
Absolutely. It supports quantitative data collection, graphing, and mathematical analysis appropriate for AP® Chemistry, honors chemistry, and introductory college courses.How is this different from a traditional Jolly bulb?
The Digital Jolly Bulb features a built-in digital pressure display, eliminating analog gauge reading errors and making data collection clearer and more precise.Does it work for quick classroom demonstrations?
Yes. The bulb is sensitive enough to detect pressure changes from simply holding it, making it ideal for fast, engaging demonstrations before moving into deeper investigations.
Warning: California Residents
WARNING: Cancer & Reproductive Harm — www.P65Warnings.ca.gov
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