Question

Thermal Insulating capacity of a substance
is​

Answer 1

One Btu corresponds roughly to 1 kJ. In simple terms this is a measure of the capacity of a material to conduct heat through its mass. Different insulating materials and other types of material have specific thermal conductivity values that can be used to measure their insulating effectiveness.

Answer 2

The inversion of thermal conductivity is used to calculate a material's insulating capabilities (k).

• Low heat conductivity equates to good insulating properties (resistance value).
• Thermal insulating materials, also known as thermal conserving and heat insulating materials, are materials or material complexes that appear to be resistant to thermal currents.
• The goal of thermal conservation is to keep heat from dispersing or escaping, whereas the goal of heat resistance is to keep external heat out.
• Insulation is defined as the creation of a barrier between a hot and a cool object that reduces heat transmission by reflecting thermal radiation or reducing heat resistance and movement from one object to another.