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Category > Chemistry Posted 02 May 2017 My Price 3.00

A room by 3 m ha one side wall maintained

A room by 3 m ha one side wall maintained at 260OC: the floor is maintained at 90OC. The other four surfaces are perfectly insulated. Assume that all surfaces are black. Calculate the net heat transfer between the hot wall and the cool floor.  

Apr 21 2017 12:53 PM

 

 

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Alpha Geek
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Status NEW Posted 02 May 2017 06:05 PM My Price 3.00

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file 1493750245-answer1.docx preview (75 words )
A----------- ro-----------om -----------by -----------3 m----------- ha----------- on-----------e s-----------ide----------- wa-----------ll -----------mai-----------nta-----------ine-----------d a-----------t 2-----------60O-----------C: -----------the----------- fl-----------oor----------- is----------- ma-----------int-----------ain-----------ed -----------at -----------90O-----------C. -----------The----------- ot-----------her----------- fo-----------ur -----------sur-----------fac-----------es -----------are----------- pe-----------rfe-----------ctl-----------y i-----------nsu-----------lat-----------ed.----------- As-----------sum-----------e t-----------hat----------- al-----------l s-----------urf-----------ace-----------s a-----------re -----------bla-----------ck.----------- Ca-----------lcu-----------lat-----------e t-----------he -----------net----------- he-----------at -----------tra-----------nsf-----------er -----------bet-----------wee-----------n t-----------he -----------hot----------- wa-----------ll -----------and----------- th-----------e c-----------ool----------- fl-----------oor-----------. Â-----------  -----------Apr----------- 21----------- 20-----------17 -----------12:-----------53 -----------PM ----------- Gi-----------ven-----------: ----------- A -----------roo-----------m o-----------f 3-----------m s-----------ize----------- in----------- ea-----------ch -----------dim-----------ens-----------ion----------- A=-----------are-----------a o-----------f w-----------all----------- or----------- fl-----------oor-----------=3m-----------*3m----------- Wa-----------ll -----------tem-----------per-----------atu-----------reÂ----------- Tw-----------=26-----------0oC-----------=26-----------0+2-----------73K-----------=53-----------3KT-----------w=2-----------60o-----------C=2-----------60+-----------273-----------K=5-----------33K-----------Flo-----------or -----------tem-----------per-----------atu-----------reÂ----------- Tf-----------=90-----------oC=-----------90+-----------273-----------K=3-----------63K-----------Tf=-----------90o-----------C=9-----------0+2-----------73K-----------=36-----------3KÂ----------- vi-----------ew
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