Physical Chemistry podcasts

Melissa and Jam explain how evaporating water can cool a building and why the same approach works much better in dry climates than humid ones. They connect swamp coolers to older cooling techniques and examine newer ideas, including ice-based systems intended to reduce pressure on electricity grids.

Hosted by Melissa, Jam

Melissa and Jam trace the chemistry of refrigerants from early hazardous compounds to chlorofluorocarbons and their replacements. They explain why a substance that cools effectively can still create environmental problems, and discuss the tradeoffs among ozone protection, climate effects, flammability and regulation.

Hosted by Melissa, Jam

Melissa and Jam unpack the chemistry inside an air conditioner. They explain how refrigerants, pressure changes and transitions between liquid and gas move heat out of a room, why the outdoor unit releases warmth, and what frozen coils reveal about the cooling process.

Hosted by Melissa, Jam

Mariana Kneppers, Mason Wakley and Frances Briggs reflect on 25 years of click chemistry and its spread into medicine and materials research. A second discussion examines covalent bonding in actinide elements and the experimental challenges of understanding how the heaviest atoms share electrons.

Hosted by Mariana Kneppers