A form of energy that flows between two samples of matter because of their differences in temperature.
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Features of the Scanning Tunneling Microscope
The scanning tunneling microscope (STM) invented by Heinrich Rohrer and Gerd Binnig in the 1980s still manages to do a great job today and competes with more advanced microscope types. The scanning tunneling microscope is used for studying the surface atoms that are found on various materials. The...
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Diamonds Are Forever
Diamonds are still a girl's best friend, right? We love the shiny gems. They are the most popular rocks sold today. But what exactly are they, anyway? Where do they come from? What else are they used for?
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What's In Your Beverage? How to Ensure Quality Control with CO2 Analytical Support
Calibration standards, performance audits, and the FDA's never-ending safety, labeling, and inspection requirements are just the tip of the iceberg when it comes to dealing with the increasingly stringent quality control standards of the beverage industry. As these quality standards become...
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Chemical Safety
People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...
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Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
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Conformations
Structures of a compound that differ by the extent of rotation about a single bond.
Greenhouse Effect
Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.
Atmosphere
A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.
Electrical Conductivity
Ability to conduct electricity.
Polyene
A compound that contains more than one double bond per molecule.
Salt and its use in everyday life
Cooking salt is a product that is available in every kitchen, and it’s not as simple as it seems. The history of this product shows that it was valued like gold.
Calorie
The amount of heat required to raise the temperature of one gram of water from 14.5°C to 15.5°C. 1 calorie = 4.184 joules.
Matter
Anything that has mass and occupies space.
Critical Point
The combination of critical temperature and critical pressure of a substance.
Evaporization
Vaporization of a liquid below its boiling point.
