Appendix G

APPENDIX G

T h e f o l l o w i n g t a b l e lists b i n a r y d i f f u s i o n c o e f f i c i e n t s for r e l e v a n t fuel cell s u b s t a n c e s at 1 a t m o s p h e r e .

Substance A

Substance B

T(K)

Acetone Acetone Ar Benzene CO2 CO2 CO~ CO2 Ethanol G Glucose H2 H2 H2 H2 H2 H20 N2 Naphthalene NH3 02 02 O~

Air H20 N2 Air Air N2 02 H20 H20 H20 H20 Air 02 N2 CO2 H20 Air H20 Air Air Air N2 H20

298 298 293 298 298 293 273 298 298 298 298 273 273 273 273 298 298 298 300 298 298 273 298

DAB(rrI2/S) 0.11 0.13 0.19 0.88 0.16 0.16 0.14 0.20 0.12 0.94 0.69 0.41 0.70 0.68 0.55 0.63 0.26 0.26 0.62 0.28 0.21 0.18 0.24

x x x x x x x x x x x x x x x x x x x x x x x

10-4 10-8 10-4 10-s 10-4 10-4 10-4 10-8 10-8 10-9 10-9 10-4 10-4 10-4 10-4 10-8 10-4 10-8 10-s 10-4 10-4 10-4 10-8