Posted March 25, 2001 - 02:42 PM
If this is true, does cold water boil faster than hot water? Prove it.
Posted March 25, 2001 - 03:13 PM
I can't prove with water but I do know when my wife get's mad (hot) she turns into an Ice queen (cold).
Posted March 25, 2001 - 03:42 PM
The next day at work, we did it again (we were afraid that the alcohol might have clouded our judgement. Same results.
I worked at the Perry Nuclear power Plant,(reactor Operator) where do you work.
I was also a nuke in the navy. (USS Trepang, SSN 674)
Hope this snow goes away, I really want to ride.
Posted March 25, 2001 - 05:16 PM
USS Tennessee, "M" Division, class 8502.
Posted March 25, 2001 - 08:15 PM
nuke plant....alcohol.....clouded judgement.
hmmmmm, nice to know you don't work there anymore.
Posted March 25, 2001 - 10:03 PM
The rate of heat transfer is proportional to the temperature difference between the two objects, so hot water will lose heat faster than cold water. In other words, if you have water at 90 degrees C and water at 10 degrees C and the freezer is at -10 degrees C, the hot water will lose heat five times faster than the cold water; however, the cold water will still win the race. As the hot water cools it's rate of heat transfer will decrease, so it will never catch up to the cold water.
[This message has been edited by Rich Rohrich (edited 03-26-2001).]
Posted March 25, 2001 - 10:53 PM
I actually performed this experiment back in college and came up with many of the same conclusions and observations. The first couple of times the hot water actually froze faster.
In disbelief I repeated the experiment taking great care to eliminate any sources of error I could think of. Take water from same tap. Heat all water first to reduce the amount of air dissolved in water. Repeat experiment with positions of hot/cold water swapped. In the end the cold water froze first and with renewed confidence I got back to the studies I should have been doing all along.
Posted March 26, 2001 - 12:45 AM
Posted March 31, 2001 - 07:19 AM
For what its worth.