Question: Does a higher temperature difference accelerate or slow down heat transfer? What has a higher thermal conductivity - polystyrene or concrete? What are the two

Does a higher temperature difference accelerate or slow down heat transfer?
What has a higher thermal conductivity - polystyrene or concrete?
What are the two factors that determine the capacity of a material to store heat?
When does thermal bridge occur? Is it good or bad?
Does a higher temperature difference accelerate or slow down heat transfer?

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