Heat Conductivity Apparatus STEM LAB Manufacturer,Supplier and Exporter in India
Product Code : SCL-MH-12510
Introduce students to the dynamics of thermodynamics and thermal energy transfer with the Heat Conductivity Apparatus STEM Lab from Educational Instrument India. This essential physics and chemistry laboratory instrument provides a clear, visual demonstration of how different solid materials conduct heat at varying rates.
Commonly referred to as the Ingenhousz’s apparatus, this tool is engineered for high schools, STEM academies, and engineering institutions. It helps students transition from theoretical thermodynamic formulas to observing real-time macroscopic heat transfer. By comparing everyday metals like copper, aluminum, brass, and iron, students gain a foundational understanding of thermal conductivity constants and their critical importance in modern metallurgy and thermal engineering.
Key Features & Benefits
Multi-Material Comparison: Equipped with distinct metal rods (typically Copper, Aluminum, Brass, and Iron) attached to a central heating hub, allowing side-by-side comparative analysis.
Highly Visual STEM Demonstrations: Optimized for clear visual indicators, whether using traditional wax melting methods or liquid crystal temperature strips, making it excellent for classroom demonstrations.
Safe and Insulated Design: Features a heat-resistant central reservoir or handle that allows safe application of heat via a Bunsen burner or hot water without compromising user safety.
Precision Engineering: Built by Educational Instrument India using premium, high-purity metals to ensure accurate, consistent, and textbook-aligned experimental data.
Technical Specifications
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Parameter |
Details |
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Brand Name |
Educational Instrument India |
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Product Name |
Heat Conductivity Apparatus STEM Lab |
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Core Scientific Principle |
Fourier's Law of Heat Conduction, Thermal Conductivity |
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Conductive Rod Materials |
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Rod Dimensions |
Length: ~150 mm; Diameter: ~5 mm (uniformly matched) |
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Central Hub Material |
Heavy-duty chrome-plated brass or stainless steel |
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Handle/Support Type |
Insulated wooden or heat-resistant polymer handle |
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Compatible Heat Sources |
Bunsen Burner, Alcohol Lamp, or boiling water bath |
How to Use It: Step-by-Step Guide
Follow these steps to conduct a successful thermal conductivity experiment:
Prepare the Rods: Ensure all four metal rods are clean and free of residue. Coat each rod equally with a thin layer of paraffin wax, or place small wax rings/matches at equal intervals along each rod.
Secure the Apparatus: Mount the apparatus firmly on a laboratory ring stand using a bosshead clamp, holding it by the insulated handle.
Apply the Heat Source: Position a Bunsen burner or alcohol lamp directly under the central hub. This ensures that the heat source delivers a uniform temperature to the origin point of all rods simultaneously.
Observe and Measure: Watch the wax melt along each rod. Students will see the wax on the copper rod melt first and fastest, followed by aluminum, brass, and finally iron.
Data Analysis: Have students record the time it takes for the wax to melt to a specific marked distance on each rod. Use these times to calculate and rank the relative thermal conductivity of the materials.
Frequently Asked Questions (FAQs)
Q1: Why do the metals conduct heat at different rates?
Thermal conductivity depends on the availability of free electrons and lattice vibrations within the atomic structure of the metal. Metals like copper and aluminum have highly mobile free electrons that quickly transfer kinetic energy throughout the material, resulting in a higher thermal conductivity rate compared to brass or iron.
Q2: Why is it crucial that all the rods have the same dimensions?
To ensure a fair test, dimensions must be controlled. According to Fourier's Law, the rate of heat transfer is directly proportional to the cross-sectional area and inversely proportional to the length. By keeping the length and diameter identical across all rods, the only variable affecting heat transfer is the material itself.
Q3: Can this apparatus be used without an open flame?
Yes. If your laboratory policies restrict open flames, the central reservoir version of this apparatus can be filled with boiling water or heated via an electric immersion coil to safely conduct the experiment.
Q4: How do you clean the apparatus after the experiment?
Allow the equipment to cool down completely. Gently scrape off any solidified wax using a plastic scraper, then wipe the rods down with a warm cloth or a mild solvent like isopropyl alcohol to remove any remaining oily film. Avoid using abrasive steel wool, which can scratch and alter the surface area of the rods.
