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What’s Your Eddy IQ – Does Hot Water Freeze Faster than Cold Water?

This week we asked our Facebook followers a simple question: True or False? Hot water freezes faster than cold water.
The answer was more than a little surprising. Conventional wisdom has had many of us filling water trays with hot water to help the ice freeze faster. This may seem illogical, as hot water first has to cool and then freeze, so how is it possible for hot water to freeze faster than cold water? Yet, most ice cube tray fillers will tell you: use hot water!
To get to the bottom of this question, we searched the Internet far and wide, and settled on Scientific American as a source. Their answer? “Not usually, but possibly under certain circumstances.” Specifically, they state:
“It all depends on how fast the cooling occurs, and it turns out that hot water will not freeze before cold water but will freeze before lukewarm water. Water at 100 degrees C, for example, will freeze before water warmer than 60 degrees C but not before water cooler than 60 degrees C.” (Source). They elaborate further, stating “Another situation in which hot water may freeze faster is when a pan of cold water and a pan of hot water of equal mass are placed in a freezer compartment. There is the effect of evaporation mentioned above, and also the thermal contact with the freezer shelf will cool the bottom part of the body of water. If water is cold enough, close to four degrees C (the temperature at which water is densest), then near-freezing water at the bottom will rise to the top. Convection currents will continue until the entire body of water is 0 degrees C, at which point all the water finally freezes. If the water is initially hot, cooled water at the bottom is denser than the hot water at the top, so no convection will occur and the bottom part will start freezing while the top is still warm. This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases. In this case, of course, the freezer will have worked harder during the given amount of time, extracting more heat from hot water.” (Source).
So, the answer is both yes and no, true and false, which is a bit unusual for our Eddy IQ fun.
Thanks for playing our Eddy IQ game, and tune in again on Thursday on our Facebook page to play.
About Eddy Home
Founded in 2014, Eddy Home is an industry leader in leak protection and water visibility solutions. Our suite of smart products offers a comprehensive water management system for homeowners that protects, controls, and conserves. Our products have saved thousands of customers millions of litres of water by continuously monitoring water usage in their home, and if something unusual is detected, alerting them to the issue. For more details, please contact us at 1 877 388 3339 or email info@eddyhome.com.
 

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Paul Pathak​

Director

Paul Pathak is a partner of Chitiz Pathak LLP. Paul practices principally in the areas of corporate, securities, corporate finance, mergers and acquisitions and commercial law. He represents and provides sophisticated guidance to private and public corporate clients in a broad range of industries, including mining, technology, manufacturing, venture capital and merchant banking.

George Krieser​

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George Krieser founded Total Credit Recovery Limited (“TCR”) in 1980 and is the President and Chief Executive Officer. TCR is the largest 100% Canadian-owned and operated collection agency, solely collecting Canadian debt. George previously served as a Director of Universal Energy. He also served as a member of the board of directors of Baycrest Foundation and as a member of the fundraising committee for UJA Federation of Greater Toronto.
Gary Goodman​
Director
Gary Goodman is a Trustee and Chair of the Audit & Risk committee of Boardwalk Real Estate Investment Trust., a former Chairman of Huntingdon Capital Corp., trustee of Gazit America & Brightpath Early Learning, and is a member of the advisory boards of the Vision Funds. Gary was previously Executive Vice President of Reichmann International where he served as a senior financial executive and trusted advisor for over 30 years.

Chris Gower

Director

Chris Gower started his career in construction on the tools – framing houses, where he grew a deep appreciation for the trades. Prior to his current role as Chief Operating Officer, Buildings at PCL Construction (“PCL”), Chris held positions including construction risk manager, senior project manager, district manager and regional vice president. Throughout his more than 25 years at PCL, he has delivered iconic construction projects across Canada, Australia and the United States.

June Thomson

EVP, Sales, Marketing
& Business Development

June joined the Eddy team coming from Enercare after 10+ years in various roles, most recently as Vice President of the North American Builder Division. June has been in the HVAC industry for over 41 years, holding several roles throughout her career from Technician to Provincial Offences Officer.

Saj Khan

COO & President

Sajid Khan helped launch Eddy Solutions and has been in the role of Chief Operating Officer since inception. With more than 20 years of leadership and operational experience in the home services sector, Saj has held roles such as COO of Eco Energy Service, Vice President of Operations at both National Home Services and Universal Energy.

Boris Baril

CFO

With more than 25 years of financial experience, Boris has held both public and private company CFO roles; supported two (TSX listed) initial public offerings (IPOs), debt and equity capital raises, and M&A transactions. Boris graduated from York University and is a CPA, CA.

Mark Silver

CEO & Chairman

Mark L. Silver is President of Optus Capital Corporation. Mr. Silver has made significant real estate investments in both development stage and income producing properties in the residential, commercial and industrial sectors over his 35 year business career. Over the last 22 years, these investments have been made through his company, Optus Capital Corporation. Mr. Silver was a founding partner and Chief Executive Officer of Universal Energy which was sold in 2009 to Just Energy Group Inc. He co-founded Direct Energy Marketing and grew the company to over $1.3 billion in revenues before selling to Centrica PLC (also known as British Gas) in 2000.