temperature

Titanic Sinking, engraving by Willy Stöwer
Chemistry and the Titanic
// Wednesday, January 4, 2023 • Tom Kuntzleman
Various items (hot dogs, bananas, flowers, racquetballs, plastic cups) show properties akin to glass when chilled in liquid nitrogen.1-4 Objects such as racquetballs and plastics behave in this manner because they are made of polymers, and polymers can become cooled below what is known as the glass transition temperature (Tg) for t
Teacher at front lab counter preparing a Demo
Kinetics Review
// Thursday, April 28, 2016 • mamorgan@me.com
In one of my last blog posts I wrote of how I sometimes enjoy ending a unit with a series of demonstrations and using them to elicit a dialog between the students and myself to check for understanding. It is always a fascinating experience to hear the misconceptions that many students have the day before the test.