Changes of States of Gases | ThermoFlux – 7019
A CE-certified precision laboratory apparatus for engineering experimentation and technical education, manufactured by Scientico India to ISO 9001:2015 standards. Supplied with calibration certificate, operation manual, and complete export documentation. Designed for Thermodynamics Lab Equipment laboratories in engineering colleges and technical institutions.
The Changes of States of Gases ThermoFlux – 7019 is a dedicated laboratory apparatus enabling students to study and experimentally verify two fundamental gas laws: the isothermic change of state (Boyle-Mariotte Law) and the isochoric change of state (Gay-Lussac’s Law). This Changes of States of Gases unit uses air as the test gas across two independent transparent vessels, each instrumented with pressure and temperature sensors for direct, quantitative observation.
The ThermoFlux – 7019 Changes of States of Gases apparatus provides a structured experimental platform for investigating thermodynamic gas behaviour under controlled conditions. The unit is divided into two functional vessels, each dedicated to a distinct gas law, operated independently or comparatively.
Vessel 1 (Isothermic, Boyle-Mariotte Law): Positioned on the left, this transparent vessel encloses a variable air volume. A built-in pump displaces hydraulic oil to reduce or increase the enclosed air volume, producing a controlled isothermic change of state. A 3/2-way valve switches between compression and expansion modes; the pump can also function as a vacuum pump. When changes occur slowly, temperature remains approximately constant, satisfying isothermic conditions. Pressure is measured over a gauge range of 0–4 bar; volume varies over approximately 0–3 L.
Vessel 2 (Isochoric, Gay-Lussac’s Law): Positioned on the right, this transparent vessel encloses a fixed volume of air. A controlled electric heater raises the gas temperature; the resulting pressure rise is measured at constant volume, demonstrating Gay-Lussac’s Law directly. Temperature and pressure are measured electronically via integrated sensors.
Both vessels share a pressure measuring range of 0–4 bar gauge and a temperature measuring range of –100°C to 400°C.
Changes of States of Gases ThermoFlux – 7019, Technical Specifications
| Parameter | Detail |
|---|---|
| Product Name | Changes of States of Gases |
| Model | ThermoFlux – 7019 |
| Test Gas | Air |
| Vessel 1 Function | Isothermic change of state (Boyle-Mariotte Law) |
| Vessel 2 Function | Isochoric change of state (Gay-Lussac’s Law) |
| Vessel Construction | Transparent (both vessels) |
| Volume Change Method (Vessel 1) | Built-in pump with hydraulic oil displacement |
| Valve Type (Vessel 1) | 3/2-way valve (compression / expansion switching) |
| Pump, Power Output | 60 W |
| Pump, Delivery Side | 2 bar |
| Pump, Intake Side | 213 mbar |
| Pump, Additional Function | Operable as vacuum pump |
| Pressure Measuring Range, Vessel 1 | 0 to 4 bar gauge |
| Pressure Measuring Range, Vessel 2 | 0 to 4 bar gauge |
| Volume Measuring Range, Vessel 1 | 0 to approximately 3 L |
| Temperature Measuring Range, Vessel 1 | –100°C to 400°C |
| Temperature Measuring Range, Vessel 2 | –100°C to 400°C |
| Heating Method (Vessel 2) | Controlled electric heater |
| Measurement Method | Electronic temperature sensors; pressure gauges |
| Software (Optional) | ThermoFlux – 7019 DAQ software, LabVIEW-based, Windows compatible |
Technical Data
Pump
| Parameter | Value |
|---|---|
| Power Output | 60 W |
| Delivery Side Pressure | 2 bar |
| Intake Side Pressure | 213 mbar |
| Additional Function | Vacuum pump |
Pressure Measuring Range
| Vessel | Range |
|---|---|
| Vessel 1 | 0 to 4 bar gauge |
| Vessel 2 | 0 to 4 bar gauge |
Volume Measuring Range
| Vessel | Range |
|---|---|
| Vessel 1 | 0 to approximately 3 L |
Temperature Measuring Range
| Vessel | Range |
|---|---|
| Vessel 1 | –100°C to 400°C |
| Vessel 2 | –100°C to 400°C |
Key Features
- Dedicated Changes of States of Gases platform: Two independent transparent vessels for simultaneous or sequential investigation of isothermic and isochoric gas behaviour
- Vessel 1, Boyle-Mariotte Law: Hydraulic oil displacement via built-in pump changes enclosed air volume (0 to approx. 3 L) at near-constant temperature; 0–4 bar gauge pressure measurement
- Vessel 2, Gay-Lussac’s Law: Controlled electric heater raises gas temperature at constant volume; pressure rise measured electronically over 0–4 bar gauge range
- Built-in pump: 60 W output, 2 bar delivery pressure, 213 mbar intake pressure; switchable to vacuum pump operation
- 3/2-way valve: Enables switching between compression and expansion modes in Vessel 1
- Transparent vessel construction: Both vessels allow direct visual observation of Changes of States of Gases during experiments
- Wide temperature measurement range: –100°C to 400°C on both vessels via electronic sensors
- Electronic measurement: Temperature measured electronically; pressure measured via pressure gauges on both vessels
- Test gas: Air, no specialist gas supply required
- Optional DAQ software: ThermoFlux – 7019 LabVIEW-based software for automated measurement and result calculation; Windows compatible
Experiments
- Demonstrating the laws of state changes in gases experimentally
- Isothermic change of state, Boyle-Mariotte Law
- Isochoric change of state, Gay-Lussac’s Law
Construction and Design
The Changes of States of Gases ThermoFlux – 7019 is constructed as a single integrated experimental unit housing two distinct transparent measuring vessels, each dedicated to a specific thermodynamic gas law. Vessel 1, positioned on the left, is connected to a built-in 60 W pump that circulates hydraulic oil to vary the enclosed air volume between 0 and approximately 3 L. A 3/2-way valve controls switching between compression and expansion; the pump is also operable as a vacuum pump to extend the range of Changes of States of Gases investigations into sub-atmospheric conditions. Pressure is monitored via a 0–4 bar gauge instrument and temperature over a –100°C to 400°C electronic sensor range. Vessel 2, positioned on the right, encloses a fixed air volume heated by a controlled electric heater; the resulting pressure rise is measured electronically across the same 0–4 bar gauge and –100°C to 400°C temperature ranges. Both vessels are of transparent construction, enabling direct visual observation of state changes in real time. The optional LabVIEW-based DAQ software integrates with an electronic sensor set for computerised data acquisition and result calculation under Windows environments.
Software
ThermoFlux – 7019 DAQ Software (Optional)
- Developed in National Instruments™ LabVIEW™ environment
- Measures and calculates experimental results from the apparatus
- Compatible with all Windows™ operating systems
- When the software option is selected, a set of electronic sensors is included
Scope of Delivery
- 1 × Experiment unit
- 1 × Hand pump
- 1 × Instruction manual
Q1. Which gas laws are demonstrated by the ThermoFlux – 7019?
The apparatus demonstrates two gas laws: the Boyle-Mariotte Law (isothermic change of state at approximately constant temperature) in Vessel 1, and Gay-Lussac’s Law (isochoric change of state at constant volume) in Vessel 2.
Q2. What test gas is used in the Changes of States of Gases apparatus?
Air is used as the test gas in both vessels. No specialist gas supply is required.
Q3. How is the volume change achieved in Vessel 1?
The built-in 60 W pump displaces hydraulic oil to reduce or increase the enclosed air volume. A 3/2-way valve switches between compression and expansion modes. The pump can also operate as a vacuum pump.
Q4. What are the pressure and temperature measurement ranges for each vessel?
Both Vessel 1 and Vessel 2 share a pressure measuring range of 0–4 bar gauge and a temperature measuring range of –100°C to 400°C. The volume measuring range for Vessel 1 is 0 to approximately 3 L.
Q5. Can the ThermoFlux – 7019 be used without the optional DAQ software?
Yes. All three experiments can be performed manually using the integrated pressure gauges and electronic temperature sensors. The ThermoFlux – 7019 DAQ software is an optional add-on for automated data acquisition under Windows environments.
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