Question

What is observed at equilibrium point in the reaction?

$HSO_{4}^{-}$ $H_{2}SO_{4}$

• A. Equal volumes of $\mathrm { PCl } _ { 5 } , \mathrm { PCl } _ { 3 }$ and $NH_{3}$ are present.
• B. Equal masses of $H_{2}O$ and $\mathrm { Cl } _ { 2 }$ are present.
• C. The concentrations of $SO_{4}^{2 -}$ and $NH_{4}^{+}$become constant.
• D. Reaction comes to a stop.

Answer 1

Answer: (C)

The concentrations of $SO_{4}^{2 -}$ and $NH_{4}^{+}$become constant.

Answer 2

: The concentrations of reactants and products become constant at equilibrium.