Gaseous Diffusion Apparatus | ReaktiLabX – 03
The Gaseous Diffusion Apparatus ReaktiLabX – 03 studies mass transfer through diffusion in gases using a heated water bath and diffusion tube. This Gaseous Diffusion Apparatus features a fan for gas removal, a height-adjustable microscope for volume monitoring, and a motorized blade stirrer. It supports determination of diffusion coefficients based on Fick’s law across a temperature range of 100 to 400°C. Optional DAQ software enables measurement and calculation of results.
The Gaseous Diffusion Apparatus ReaktiLabX – 03 studies the microscopic transport of particles including atoms, molecules, and ions through diffusion due to changes in concentrations. This Gaseous Diffusion Apparatus uses a very volatile solvent in a hot water bath, with a vertical tube submerged to allow evaporation and diffusion. It measures diffusion coefficients using a height-adjustable microscope and controlled airflow.
Product Overview
Due to changes in concentrations, the process of diffusion involves the microscopic transport of particles including atoms, molecules, and ions. It is critical to a number of processes. Diffusion, for instance, has the ability to combine various reactants in chemical reactions.
The Gaseous Diffusion Apparatus includes a hot water bath and other components, and uses a very volatile solvent. A vertical tube containing the solvent is submerged in a water bath. The solvent evaporates as a result of the water bath’s thermal energy. At the tube’s upper end, an air flow created by a fan travels horizontally. Due to the concentration gradient from the liquid solvent’s surface up to the flow of pure air, the gaseous solvent diffuses. The solvent molecules are carried away by the air flow, maintaining a constant concentration at the tube’s upper end. Over time, the liquid solvent in the tube loses volume. It is possible to determine the level using a scale microscope. The temperature in the water bath is controlled by a heater.
Gaseous Diffusion Apparatus ReaktiLabX – 03 — Technical Specifications
| Specification | Detail |
|---|---|
| Study Scope | Investigation of diffusion of gases |
| Diffusion Setup | Evaporation of a highly volatile solvent with a diffusion tube in a heated water bath |
| Gas Removal | Removal of gaseous solvent at the upper end of the diffusion tube with a fan |
| Temperature Control | Heater with controller and sensor for adjusting the temperature in the water bath |
| Volume Monitoring | Height-adjustable microscope for monitoring and determining the solvent volume in the diffusion tube |
| Control Unit | Digital display and control unit contains temperature controller and fan |
Technical Data
Water Bath
| Parameter | Value |
|---|---|
| Capacity | approx. 2L |
Diffusion Tube for Solvent
| Parameter | Value |
|---|---|
| Diameter | 4mm |
| Length | 100mm |
Heater
| Parameter | Value |
|---|---|
| Power | 300W approx. |
Fan
| Parameter | Value |
|---|---|
| Flow | 120~320L/h |
Microscope
| Parameter | Value |
|---|---|
| Scale division | 0.1mm |
Stirrer
| Parameter | Value |
|---|---|
| Type | Blade |
| Drive | Motorized |
| Speed | 500rpm |
Measuring Ranges
| Parameter | Value |
|---|---|
| Temperature | 100~400°C |
Key Features
- Water Bath: approx. 2L capacity
- Diffusion Tube: 4mm diameter, 100mm length
- Heater: approx. 300W power
- Fan: flow rated 120~320L/h
- Microscope: 0.1mm scale division, height-adjustable
- Stirrer: blade type, motorized drive, 500rpm speed
- Temperature Control: heater with controller and sensor, range 100~400°C
- Digital Control Unit: houses temperature controller and fan controls, central to operating this Gaseous Diffusion Apparatus
- Software: optional DAQ software for measurement and calculation
Experiments
- Fundamentals of diffusion: Fick’s law
- Derivation of the calculation formula for the diffusion coefficients for the given experimental conditions
- Determination of the diffusion coefficient for the mass transport in gas
Construction and Design
The Gaseous Diffusion Apparatus ReaktiLabX – 03 uses a water bath of approximately 2L capacity, heated by a heater rated approximately 300W. A diffusion tube, 4mm in diameter and 100mm in length, containing a volatile solvent, is submerged in the water bath. At the tube’s upper end, a fan with a flow rate of 120 to 320L/h removes gaseous solvent, maintaining a constant concentration. A height-adjustable microscope, with a scale division of 0.1mm, monitors and determines solvent volume in the diffusion tube. A motorized blade stirrer, operating at 500rpm, supports water bath conditions. Temperature is controlled and measured across a range of 100 to 400°C. A digital display and control unit houses the temperature controller and fan controls.
Software
Software ReaktiLabX – 03 (optional). DAQ software specially designed in National Instrument™, LABVIEW™ environment to measure and calculate the results of the apparatus. The software is optional; a set of electronic sensors is included when the software is used. The software can be run with any Windows™ environment.
Scope of Delivery
- 1 Experimental unit
- 1 Microscope to measure level in tube
- 1 Stopwatch
- 1 Set of instructional material
Q: What is the Gaseous Diffusion Apparatus ReaktiLabX – 03 used for?
A: It is used to study diffusion in gases, determining diffusion coefficients for mass transport based on Fick’s law.
Q: How is gas diffusion studied in this apparatus?
A: A volatile solvent evaporates in a heated water bath, with the gaseous solvent diffusing into an air flow created by a fan, and the liquid solvent volume monitored using a microscope.
Q: What is the diffusion tube’s construction?
A: The diffusion tube is 4mm in diameter and 100mm in length.
Q: Is data acquisition software available with this system?
A: Yes, Software ReaktiLabX – 03 is available as an optional add-on, designed in National Instrument™ LABVIEW™ environment, and can run with any Windows™ environment.
Q: What is the water bath capacity and heater power?
A: The water bath has a capacity of approximately 2L, with a heater rated approximately 300W.
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