ANSWERS: 1
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The thermal conductivity of brass is 109 Watts divided by mass times degrees Celsius at 25 degrees Celsius. This means that 109 watts of energy is transferred and is dependent upon the amount of brass and the temperature of the brass itself at 25 degree Celsius. Conductive heat transfer occurs when warmer molecules touch cooler ones (or from more energetic to less energetic).
Source:
The Engineering Toolbox:Thermal Conductivity of some common Materials
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