Making Liquid Nitrogen From Scratch!

The video explores the process of liquefying nitrogen from the air using a cryo cooler. It begins with an introduction to nitrogen's role in Nitro cold brew, followed by a detailed explanation of the liquefaction process. The video also covers the extraction of liquid oxygen and its properties. The process of isolating nitrogen using a nitrogen membrane is demonstrated, and the challenges faced in making liquid nitrogen are discussed. Finally, the video explains how nitrogen is used in Nitro cold brew to create a unique texture.

What percentage of the atmosphere is made up of nitrogen?

• 21%

• 50%

• 92%

• 78%

What is the main purpose of using a cryo cooler in the experiment?

• To filter the air

• To cool the air to cryogenic temperatures

• To compress the air

• To heat the air

What property of liquid oxygen allows it to be attracted to magnets?

• It is non-magnetic

• It is diamagnetic

• It is ferromagnetic

• It is paramagnetic

What is the key component used to isolate pure nitrogen from the air?

• A helium cylinder

• A nitrogen membrane

• A carbon filter

• A water vapor remover

What purity level of nitrogen was achieved in the experiment?

• 95%

• 100%

• 98%

• 99.7%

What was one of the challenges faced in liquefying nitrogen?

• Too high nitrogen flow rate

• Insufficient helium

• Excessive cooling

• Too low pressure

What was the final successful method used to liquefy nitrogen?

• Using a smaller flask with a tight seal

• Increasing the nitrogen flow rate

• Decreasing the helium pressure

• Using a larger flask

What is one application of homemade liquid nitrogen mentioned in the video?

• Purifying water

• Heating beverages

• Making soda

• Creating ice cream

Why are nitrogen bubbles preferred over carbon dioxide bubbles in Nitro cold brew?

• They are smaller and create a creamier texture

• They react with the drink

• They are larger and more visible

• They create a sour taste

What unique visual effect is observed when pouring Nitro cold brew?

• Bubbles rising rapidly

• Bubbles cascading down the sides

• Bubbles disappearing instantly

• Bubbles forming a spiral