For a steel alloy it has been determined that a carburizing heat treatment of 14 h duration at 763°c will raise the carbon concentration to 0.46 wt% at a point 2.2 mm from the surface. estimate the time necessary to achieve the same concentration at a 5.3 mm position for an identical steel and at a carburizing temperature of 1000°c. assume that do is 1.5x10^-5 and qd is 104 kj/mol.