تسجيل الدخول

تسجيل

Conductivity of Liquids

المؤلف:  GEORGE A. HOADLEY

المصدر:  ESSENTIALS OF PHYSICS

الجزء والصفحة:  P-249

2025-11-22

621

Liquids as a class are poor conductors of heat, the conductivity of water being about 14/800 so of that of copper. 

Demonstration. - Put some pieces of ice in the bottom of a test tube. Fasten them there with a coil of wire. Pour in water until the tube is nearly full, and then hold it over a Bunsen burner so that the heat will be applied at a point covered by the water. In this way the water in the upper part of the tube may be boiled while there is ice in the bottom only a few centimeters away.