Consider the equilibrium rxn Consider these facts: 1. The partial pressure of ox

ID: 964419 • Letter: C

Question

Consider the equilibrium rxn

Consider these facts:

1. The partial pressure of oxygen gas decreases whent he temperature of the rxn chamber is increased

2. Remember that AgNO3 is soluble in water, but AgCl is insoluble in water

which statements are true?

I. The rxn is endothermic

II. The rxn becomes spontaneous backwards when silver (I) nitrate is added to the equilibrium mixture

III. When the atmospheric volume of the rxn container is increased at equilibrium, the rxn becomes spontaneous forwards

IV. when the atmospheric volume of the rxn container is increased at equilibrium, the moles of liquid water increases

true statements :

1) I. The rxn is endothermic

2) II. The rxn becomes spontaneous backwards when silver (I) nitrate is added to the equilibrium mixture

explanation:

according to lechatliers principle :

1) temperature of the rxn chamber is increased parial pressure of O2 decreases means it is shifting to forward direction so it is endothermic

2) when AgNO3 added to that HCl react wih AgNO3 reaction shifts backward direction

AgNO3 + HCl -----------------> AgCl (s) + HNO3

3) if volume increases the reaction shifts to backward direction