Chemistry, 08.03.2021 20:50 dianekobasher

Question 125 pts An FCC nickel-carbon alloy initially containing 0.20 wt% carbon is carburized at an elevated temperature and in an atmosphere in which the surface carbon concentration is maintained at 1.0 wt%. Given: Do = 2.3 x 10-5 m2/s, Qd = 111,000 J/mol. If, after 49.5 h, the concentration of carbon is 0.35 wt% at a position 4.0 mm below the surface, determine the temperature at which the treatment was carried out. Boltzmann constant, k = 8.617x10-5 eV/(atom-K)= 1.38x10-23 J/(atom-K) and Avogadro’s number, NA=6.022×1023 atom/mol. Group of answer choices 1300 K 1375 K 975 K 1027 K

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Question 125 pts An FCC nickel-carbon alloy initially containing 0.20 wt% carbon is carburized at an...

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