Thursday, February 4, 2010

Heat conduction is unfired brick is high compared to fired brick true or false?

take a look at the U value of bricks ..


http://www.combustionresearch.com/Infra-鈥?/a>


if the density of an object is high the u-value is too..


things with air in it don't conduct like things with out air


if the water content is high in a brick its a better conductor of heat


if the brick is denser it conducts better...


Fired brick would have less water than unfired...


answer true

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