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 Buy Podcast Merch and Apparel

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:

1. https://www.usgs.gov/media/images/evaporative-coolers-work-best-dry-areas-us-area-a
2. https://www.youtube.com/watch?v=PT38gaGciP4
3. https://www.energy.ca.gov/publications/2024/benefits-and-challenges-using-low-gwp-a3-refrigerants-residential-air

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 Buy Podcast Merch and Apparel

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.