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Liquid Nitrogen Tank

Liquid Nitrogen Tank. Liquid nitrogen storage tank at Illinois State University. Liquid Nitrogen (N 2 ). Physical properties: colorless liquid boiling point = -196 o C. Mr. Bergmann demonstrates properties of liquid nitrogen. Uses: ‘flash’ freezing food (peas, fish)

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Liquid Nitrogen Tank

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  1. Liquid Nitrogen Tank Liquid nitrogen storage tank at Illinois State University.

  2. Liquid Nitrogen (N2) Physical properties: colorless liquid boiling point = -196 oC Mr. Bergmann demonstrates properties of liquid nitrogen. Uses: ‘flash’ freezing food (peas, fish) cosmetic surgery (removal of moles) size metal pieces cryogenic freezer for genetic samples (sperm, eggs) WARNING: Liquid nitrogen can cause severe burns.

  3. Pressure Gauge for N2 Note frozen water vapor on pipe (bottom left) of photo.

  4. Liquid Nitrogen Freeze-dried flower (lyophylization) VIDEO Effect of temperature on volume of a gas VIDEO http://www.unit5.org/chemistry/GasLaws.html

  5. Resources - Gas Laws Objectives Episode 17 – The Precious Envelope Worksheet - vocabulary Worksheet - density of gases (table) Video (VHS) - crisis in the atmosphere Worksheet - practice problems for gas laws Worksheet - behavior of gases Worksheet - gas laws review / mole Worksheet - unit conversions for the gas laws Worksheet - review problems for gas laws Worksheet - Graham's law Demonstrations - gas demos Worksheet - gas laws with one term constant Worksheet - manometers Worksheet - the combined gas law Worksheet - vapor pressure and boiling Worksheet - Dalton's law of partial pressure Lab - reaction of Mg with HCl Review – main points Worksheet - ideal gas law Textbook - questions Outline(general)

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