লক্ষ্য করুন: এই এন্ট্রির অনুবাদ বর্তমানে মান পর্যালোচনার অধীনে রয়েছে, তাই কিছু বিষয়বস্তু সাময়িকভাবে শুধুমাত্র ইংরেজিতে প্রদর্শিত হচ্ছে।
এই এন্ট্রিটি এখনও আপনার ভাষায় অনুবাদ করা হয়নি, তাই নিচে মূল লেখাটি দেখানো হচ্ছে।
thermal diffusivity
This term is a specialized technical expression used primarily in thermodynamics and materials science. It describes how quickly a material responds to a change in temperature, rather than how much heat it can conduct in total. A material with high thermal diffusivity will reach a steady state of temperature distribution much faster than one with low diffusivity.
As a technical property of matter, the term is treated as an uncountable noun. It refers to a physical constant or a specific characteristic of a substance, and therefore does not have a plural form in standard scientific discourse.
Meanings
The rate at which heat spreads through a material, defined as the ratio of thermal conductivity to the product of density and specific heat capacity.
The thermal diffusivity of copper is significantly higher than that of glass, allowing it to reach thermal equilibrium more quickly.