Quote: (Originally Posted by
Sutty)

The reactions will work in either direction
Basicaly no.
Things trundle down the energy slope and the reaction that releases energy, and this one's a biggie, will sulk and reject undoing itself. This is sad as otherwize we could recycle our scrubber material by blowing CO2 free gas through it.
Entropy will increase and my CaCO3 will never be CO2 again just as I will never again be 18.