Which one of the following is a bad Thermal Conductor?
Glass
Metals conduct heat well because their free electrons rapidly transfer thermal energy. Aluminium, Copper and Silver are all metals with high thermal conductivity (Silver ~429, Copper ~401, Aluminium ~205 W/m·K).
Glass, an amorphous non-metal, lacks free electrons and conducts heat only through slow lattice vibrations (~0.8 W/m·K), making it a poor thermal conductor (good insulator). Hence Glass is the bad thermal conductor.
Important Questions from Heat and Transfer
The brightness of a star depends on its
Thermocouple is a device which converts
To change a temperature on the Kelvin scale to the Celsius scale, you have to ________ the given temperature.
Ramu mixes 2 litres of water at 100°C and 18 litres of water at 32°C. What temperature will the water have after mixing?
Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (tc)?
