What is the formula of the specific permeance? a) specific permeance = permeability in air * ∫small change in width + length b) specific permeance = permeability in air * ∫small change in width/length c) specific permeance = permeability in air * ∫small change in width * length d) specific permeance = 1/permeability in air * ∫small change in width * length
What is the formula of the specific permeance? a) specific permeance = permeability in air * ∫small change in width + length b) specific permeance = permeability in air * ∫small change in width/length c) specific permeance = permeability in air * ∫small change in width * length d) specific permeance = 1/permeability in air * ∫small change in width * length
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