Equilibrium Tes...

(A) If water is heated to 350 K, then pOH will increase to 8.
(R) $$K_w$$ increases with increase in temperature.

Which of the following is not true for the equilibrium reaction? $$N_2(h)+O_2(g)\rightleftharpoons 2NO(g); \Delta H=180$$kJ $$mol^{-1}$$.

Consider the following equilibrium system; $$SO_2(g)+\displaystyle\frac{1}{2}O_2(g)\rightleftharpoons SO_3(g)$$; set up in a cylinder fitted with a piston. Some inert gas is added and the piston is moved outwards to keep the total gaseous pressure constant. Predict which of the following is true?

Which of the following would dissolve $$Pb(OH)_{2}$$ more than pure water?

The exothermic formation of $$ClF_{3}$$ is represented by the equation:
$$Cl_{2}(g) + 3F_{2}(g) \rightleftharpoons 2ClF_{3}(g); \triangle H_{r} = -329\ kJ$$

Which of the following does not contribute towards the formation of photochemical smog ?

Solid ammonium carbonate dissociates as:$${ NH }_{ 2 }COO{ NH }_{ 4 }(s)\rightleftharpoons 2{ NH }_{ 3 }(g)+{ CO }_{ 2 }(g)$$. In a closed vessel solid ammonium carbonate is in equilibrium with its dissociation products. At equilibrium, ammonia is added such that the partial pressure of $${NH}_{3}$$ at new equilibrium now equals the original total pressure. Calculate the ratio of total pressure at new equilibrium to that of original total pressure.

The exothermic formation of $$Cl{F}_{3}$$ is represented by the equation:

The reaction, $$ZnO(s)+CO(g)\rightleftharpoons Zn(g)+{ CO }_{ 2 }(g)$$ has an equilibrium constant of $$1$$ atm at $$1500K$$. The equilibrium partial pressure of zinc vapour in a reaction vessel if an equimolar mixture of $$CO$$ and $${CO}_{2}$$ is brought into contact with solid $$ZnO$$ at $$1500K$$ and the equilibrium is achieved at $$1$$ atm is?

In which one of the following equilibria, the increase of pressure over the equilibrium will favour the backward reaction?