Conservation of mass is not applicable in the conditions under discussion, see Wikipedia's fun list of exceptions to conservation of mass: http://en.wikipedia.o

Conservation of mass is not applicable in the conditions under discussion, see Wikipedia's fun list of exceptions to conservation of mass: http://en.wikipedia.org/wiki/Conservation_of_mass#Exceptions_or_caveats_to_mass.2Fmatter_conservation http://en.wikipedia.org/wiki/Conservation_of_mass#Exceptions...