How does your AC actually make cold air?

Is your air conditioner secretly doing chemistry while you’re inside pretending summer doesn’t exist? How does it turn hot air into cool air, and why does part of the AC blow out even more heat? In this episode, Melissa and Jam crack open the mysterious black box of air conditioning to explore refrigerants, phase changes, energy transfer, and the surprisingly clever science keeping your house livable. Plus: frozen AC coils, summer survival drinks, and the beginning of Hibiscus Girl Summer. **[Support this podcast on Patreon](http://patreon.com/chemforyourlife " Support this podcast on Patreon ") [Buy Podcast Merch and Apparel](http://chemforyourlife.com/store " Support this podcast on Patreon ")** Check out our website at chemforyourlife.com Watch our episodes on YouTube Find us on Instagram, Twitter, and Facebook @ChemForYourLife **Timestamps** 00:00 — Could we survive a Texas summer without air conditioning? 01:52 — Opening the mysterious black box that is your AC 02:50 — Traditional air conditioners vs. swamp coolers 03:33 — The two chemistry concepts behind air conditioning 04:38 — Understanding energy transfer through human collisions 05:49 — Phase changes explained using a crowded theater 10:30 — How an AC removes energy from hot air 14:20 — What happens inside the refrigerant coils 15:46 — Cooling and recycling the refrigerant 18:50 — Do refrigerators work the same way? 23:19 — Why would ice form inside a broken AC? 28:42 — Our favorite treats and drinks for surviving hot weather **References from the Episode:** **Thanks to our monthly supporters** Sara Hull Dog Day Dan Bri . Summer Alden Amanda Raymond Kyle McCray Justine Ash Vince W Julie S. Heather Ragusa Autoclave Dorien VD Scott Beyer Jessie Reder J0HNTR0Y Cullyn R Erica Bee Elizabeth P Rachel Reina Letila Katrina Barnum-Huckins Suzanne Phillips Venus Rebholz Jacob Taber Brian Kimball Kristina Gotfredsen Timothy Parker Steven Boyles Chris Skupien Chelsea B Avishai Barnoy Hunter Reardon **[Support this podcast on Patreon](http://patreon.com/chemforyourlife " Support this podcast on Patreon ") [Buy Podcast Merch and Apparel](http://chemforyourlife.com/store " Support this podcast on Patreon ")** Check out our website at chemforyourlife.com Watch our episodes on YouTube Find us on Instagram, Twitter, and Facebook @ChemForYourLife Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.