Friday
December 19, 2014

Posts by fatine


Total # Posts: 3

science
2.9844
January 12, 2013

science
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 152.0 ppm and is initially uniform through the thickness of the steel. The atmosphere of...
December 16, 2012

science
A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.23 kg m-3. Under these conditions the total surface area of the balloon is 0.46 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of ...
December 16, 2012

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