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state two factors that affect conductivity of heat in solids

state two factors that affect conductivity of heat in solids

Grade:11

1 Answers

Manika gupta
askIITians Faculty 43 Points
3 years ago
Dear Student.

Temperature difference.The greater the difference in temperature between the two ends of the bar, the greater the rate of thermal energy transfer, so more heat is transferred. The heat,Q,is proportional to the difference in temperature:

Cross-sectional area.A bar twice as wide conducts twice the amount of heat. In general, the amount of heat conducted,Q,is proportional to the cross-sectional area,A,like this:

Length (distance heat must travel).The longer the bar, the less heat that will make it all the way through. Therefore, the conducted heat is inversely proportional to the length of the bar,l:

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