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Which of the fellewing is NOT an impertant characteristic bf the preten exchange membrane {FEM} in a PEM fuel cell? C) It must withstand the high cperating temperatures cf the fuel cell. C] It physically separates the half-reactia ns. C) It must be stable in an acidic envirc-nment. {:1 It is permeable tc pretens. C) It is ceatecl with catalysts that increase the rates c-f bath the cxidatien and reductic-n reactiens.

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Which of the fellewing is NOT an impertant characteristic bf the preten exchange
membrane {FEM} in a PEM fuel cell? C) It must withstand the high cperating temperatures cf the fuel cell.
C] It physically separates the half-reactia ns.
C) It must be stable in an acidic envirc-nment. {:1 It is permeable tc pretens. C) It is ceatecl with catalysts that increase the rates c-f bath the cxidatien and
reductic-n reactiens.

 
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