Question

In winter why does an iron pillar feel colder than a woo den o pole

Answer 1

The molecules in a material at a high temperature have more kinetic energy than those in a material at a low temperature, and when the materials touch, the body at the higher temperature loses energy in the form of heat. This is called thermal conductance, and the rate at which it happens is proportional to cross-sectional area and temperature difference and inversely proportional to material thickness. It's also proportional to a constant called thermal conductivity (k), which is characteristic for each material.....