Question

Help Hayden Lee (080481087) Clcse Remaining Time: 13.31:35 The diffusion coefficient of hydrogen in a particular alloy at 1,800°C is 6.025x1016m2is. The activation energy for diffusion of hydrogen in the alloy is 220 klmol. Find the temperature-independent pre-exponential D, for hydrogen in the alloy. Remember the gas constant is 831motK O 6.8E-10 m is O 2.1E-10 m2/s O 9.7E-10 mis O 3.8E-10 m2Is

Answer 1

tohele Difusion Carticlent D = D,e T E=aetivation enelgi ftun Do De RT 2200007d 220000 Jno |R = 2.31 mot'k 220000 2.31 2073 T tempelatuo G02Sx1 200 C - lo =g0o +272)K 2.119821EO6 xo 2 2073 K 2-1 010 Ph-enponent fastoh 2IE-10 /s