Supercritical CO2 in a Glass Tube?
TLDRIn this intriguing experiment, Cody explores the pressure limits of borosilicate glass tubes by attempting to contain liquid CO2. He fills a tube with dry ice to prevent vaporization, seals it, and observes the behavior of CO2 under different temperatures. The video demonstrates the transition of CO2 from liquid to supercritical fluid, showcasing its unique properties as it interacts with water at varying temperatures. The experiment concludes with Cody safely storing the pressurized CO2, providing a fascinating insight into the behavior of this versatile substance.
Takeaways
- 🧪 The experiment involves testing the pressure capacity of borosilicate glass tubes.
- 🧊 Cody uses dry ice to cool the glass tubes and prevent CO2 from vaporizing.
- 🔨 The process includes sealing the glass tube with dry ice inside to maintain the CO2 in liquid state.
- 🛡 Safety measures such as gloves and goggles are taken to prevent potential explosions.
- 📦 The sealed glass tube is placed in a wooden box and covered with sand to contain any possible explosion.
- ⏱ After an hour, the tube is checked for remaining liquid CO2, indicating the success of the seal.
- 🌡 The experiment observes the behavior of CO2 at different temperatures, near the critical point.
- 🌡️ The critical point of CO2 is approximately 86 degrees Fahrenheit (30 degrees Celsius).
- 🌤️ At 100 degrees Fahrenheit (37.8 degrees Celsius), the CO2 transitions into a supercritical fluid state.
- 🌫️ The supercritical CO2 exhibits unique properties, such as the liquid and gas having nearly the same density.
- 💧 As the tube cools, the CO2 condenses and forms a mist or fog, demonstrating the fluid's behavior at varying temperatures.
- 🔍 The experiment concludes with the successful storage of liquid CO2, allowing for visible and interactive exploration of its properties.
Q & A
What type of glass tubes is Cody using in the experiment?
-Cody is using borosilicate glass tubes in the experiment.
What is the purpose of the experiment Cody is conducting?
-The purpose of the experiment is to test the pressure capacity of the borosilicate glass tubes and to see if they can hold liquid CO2.
How does Cody plan to prevent the CO2 from vaporizing during the experiment?
-Cody uses dry ice to cool the glass tubes and keep the CO2 from vaporizing.
What safety measures does Cody take while conducting the experiment?
-Cody wears heavy gloves and safety goggles as a precaution against potential explosions.
What is the significance of the wooden box and sand in the experiment?
-The wooden box and sand are used to contain any possible explosion from the glass tube during the sealing process.
How does Cody seal the glass tube with CO2 inside?
-Cody seals the glass tube by an unspecified method, noting that it's not sealed very well, but he hopes it will work for the experiment.
What does Cody observe after an hour of waiting for the glass tube to warm up?
-Cody observes that there is still liquid CO2 left in the glass tube after an hour.
What temperature does Cody use for the water bath to test the glass tube with CO2?
-Cody initially uses water at 86 degrees Fahrenheit (30 degrees Celsius), which is close to the critical point of CO2.
What phenomenon does Cody believe he has observed with the CO2 in the glass tube?
-Cody believes he has observed supercritical CO2, as the liquid seems to disappear and not boil all the way.
How does the behavior of the CO2 change when the water temperature is increased to 100 degrees Fahrenheit (37.8 degrees Celsius)?
-At the higher temperature, the CO2 behaves differently, with the liquid appearing to disappear and the gas and liquid densities becoming similar.
What does Cody conclude about the safety of the glass tube after conducting the tests?
-Cody concludes that the glass tube has passed enough tests and is safe enough to store, allowing him to interact with liquid CO2.
Outlines
🔬 Experimenting with Borosilicate Glass Tubes and CO2
In this segment, Cody introduces an experiment with borosilicate glass tubes to test their pressure capacity. He fills a tube with dry ice and liquid CO2, aiming to prevent the gas from vaporizing. After sealing the tube, he insulates it with sand to control any potential explosion. An hour later, Cody confirms that liquid CO2 remains inside. He then tests the tube's resilience by submerging it in warm water, observing the formation of supercritical CO2. The experiment showcases the unique properties of CO2, such as its behavior at different temperatures and densities, and ends with Cody considering the tube safe for storage and interaction.
🌡️ Observing the Phase Changes of CO2 at Various Temperatures
Cody continues his experiment by observing the phase changes of CO2 under different temperatures. He notes the formation of a mist or fog, which is actually liquid CO2 dissolving into the gas or droplets suspended due to the similar densities of the gas and liquid. He demonstrates the tube's safety by pulling it out of the water and allowing it to cool, revealing the reformation of liquid CO2. The video concludes with Cody expressing excitement about storing and interacting with liquid CO2, and humorously uses a glove as a shade while observing a 'little storm cloud' of CO2 inside the tube.
Mindmap
Keywords
💡Borosilicate Glass
💡Pressure
💡Liquid CO2
💡Dry Ice
💡Sealing
💡Explosive Potential
💡Supercritical Fluid
💡Critical Point
💡Condensation
💡Safety Precautions
💡Density
Highlights
Cody introduces an experiment with borosilicate glass tubes to test their pressure capacity.
Uses dry ice to cool the glass tube and prevent CO2 from vaporizing.
Cody fills the glass tube with crushed dry ice to maintain a cold environment for the CO2.
The challenge of sealing the glass tube to contain the pressure is discussed.
A makeshift method of sealing the tube is attempted with uncertain success.
Safety measures, such as using a wooden box and sand, are implemented to prevent potential explosions.
After an hour, the tube is checked for remaining CO2 and its containment integrity.
Observation of liquid CO2 in the tube, indicating successful containment.
Cody demonstrates the tube's safety by submerging it in warm water.
The experiment reveals the presence of supercritical CO2 upon warming the tube.
The behavior of CO2 at different temperatures is explored, near the critical point.
A visual demonstration of liquid CO2 condensing on the glass as it cools.
The unique properties of supercritical CO2 are observed as it neither boils nor forms a distinct liquid layer.
Cody notes the temperature sensitivity of the CO2's phase transition from liquid to gas.
A hair strand is used to illustrate the density similarity between liquid and gaseous CO2.
The experiment concludes with the successful storage of liquid CO2 for future interaction.
Cody humorously uses a glove as a shade while observing the CO2, adding a personal touch to the experiment.
The experiment showcases the fascinating behavior of CO2 in its various states, ending with a 'little storm cloud' effect.
Transcripts
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