Dear ChE 212 students,

On problem 7.23 of the new homework, please confirm that the energy in the 4th line of the problem is 20.2 J. Apparently some printings of the book have a typo and the same number is listed with different units.

See "errata" listings via links at

http://www4.ncsu.edu/unity/lockers/users/f/felder/public/EPCP.html

Prof. Greenfield

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