Question

1. Consider the following equilibrium: Cr OP(aq)+H20(1) 5 2Cro2 (aq) + 2H'(aq) a. Predict the shift in system at equilibrium if a solution of AgNO; is added dropwise to the system at equilibrium. Briefly explain. b. Predict the change in equilibrium if a solution of NaOH is added dropwise to the system at equilibrium. Briefly explain. c. Predict the change in equilibrium if the system at equilibrium is diluted by distilled water. Briefly explain.

Answer 1

we can explain this question based principle states on Lechetters principle. that when changes pressure, temproature de concentration pressure, temposature applied to a system in will shift so "thequiliboium, the equilibrium equiliboium, the now as to tend to counteract the of 0 countersoct the effect of the Constraint (2) +4.00 2 4 .2+(91) when Agrio is added drop wise to the system first Agro will dissociate in to ions Ag+ and No Ag+ reant with craz 2- and forms Ager, o7. It results Ag croz. It results in decrease of cro - Concentration, so the caulibrium will shift towards award directon to increase the concentoction of cro 5 when NooH is added doopwise to the system first NOOH dissociates in to nat and on ions. On ions formed veoct with the ions there by these is decrease in certain of H+ ions. This results in eauilibrium shift towards forward direction to keq = [cros (1) increase the oncentrate of it the eauliboium position, even Constant expression. equiliboium topDear in the caulibrium though Additm of water changes the en doesnot appear in the caulher water to the system at the are. but the Concentratims Adding mal all species the concentro direction to ensure the raised to a highpower in the numerator, the position of moves to woods backward direction saads backward remains constant. for k the expression cauilibrium