Given the system at equilibrium:
2pocl3(g) + energy < ==> 2pcl3(g) + o2(g)
which changes occur when o2(g) is added tothis system?
(1) the equilibrium shifts to the right and the concentration of pcl3(g) increases.
(2) the equilibrium shifts to the right and the concentration of pcl3(g) decreases.
(3) the equilibrium shifts to the left and the concentration of pcl3(g) increases.
(4) the equilibrium shifts to the left and the concentration of pcl3(g) decreases.

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.