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If there were 2 rooms that were exactly the same except for colour would they have the same temperature?

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Posted by aywitb on January 23, 2015, 7:34 pm
 
If these 2 rooms had exactly the same furniture in them and both faced the  
sun exactly the same but one room had all black furniture and flooring and  
one had all white furniture and flooring would the temperatures be the same
 in them during the day in full sun? The amount of sunlight hitting them is
 the same so they should be the same temp, right?

Posted by Morris Dovey on January 23, 2015, 11:13 pm
 
On 1/23/15 1:34 PM, aywitb@gmail.com wrote:

One room would have slightly higher air temperature, the other slightly  
higher furniture/floor temperature.

You might /feel/ slightly warmer in the room with white furniture and  
flooring.

But it might be difficult to distinguish. :-)

--  
Morris Dovey
http://www.iedu.com/Solar/  

Posted by Morris Dovey on January 24, 2015, 3:59 am
 On 1/23/15 6:17 PM, Bob F wrote:

Windows? Methinks we were both making unstated (unwarranted)  
assumptions. My bad.

My real-life "windows" were thermal diodes. :-)

BTW, it does appear possible to construct a closed system such that, at  
equilibrium, one object within can be warmer than another. Fascinating  
stuff!

--  
Morris Dovey
http://www.iedu.com/Solar/Panels  

Posted by Dan Coby on January 24, 2015, 8:14 am
 On 1/23/2015 7:59 PM, Morris Dovey wrote:>
 > BTW, it does appear possible to construct a closed system such that, at
 > equilibrium, one object within can be warmer than another. Fascinating
 > stuff!
 >

I will bite.  How does one create a closed system in thermal equilibrium  
with objects at different temperatures?

Are you calling a system with an outside source (sunlight) coming into
it and heat radiating out, a 'closed' system?


Dan

Posted by Morris Dovey on January 24, 2015, 8:58 am
 On 1/24/15 2:14 AM, Dan Coby wrote:

By creating an object that more readily absorbs energy than emits it. I  
ran across some interesting projects while researching absorber  
geometries, but didn’t bookmark because the material didn’t relate in a  
practical way to what I was doing.


Nope. I just thought Bob might find the idea interesting.

--  
Morris Dovey
http://www.iedu.com/Solar/  

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