Which of the following can lower the activation energy of a system?
a. density
b. catal...
Physics, 20.08.2019 19:30 joannegrace4898
Which of the following can lower the activation energy of a system?
a. density
b. catalysts
c. temperature
d. concentration
Answers: 1
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Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
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