Rate of fall of temperature with respect to the distance or thickness
a)Thermal Capacity
b)Temperature gradient
c)Thermal conductivity
d)Thermal diffusivity
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The best thermal insulators have the lowest thermal conductivity; this is the property of a material that measures how well it can conduct heat through its mass. The lower the conductivity measure, the less well a material is able to conduct heat, thus enabling it to trap heat or protect contents from outside heat.
Explanation:
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