Nitrogen, hydrogen and ammonia gases are put into a container. The container is then sealed. After a period of time, equilibrium is established. $\text{N}_2\text{(g)} + 3\text{H}_2\text{(g)} \rightleftharpoons 2\text{NH}_3\text{(g)}$ Which statement gives the description of the equilibrium in this container?
- AThe amount of ammonia remains constant from the moment the container is sealed.
- BThe amounts of ammonia, nitrogen and hydrogen in the container are always equal.
- CThe rate of formation of ammonia is equal to the rate of decomposition of ammonia.
- DThe rate of formation of ammonia is faster than the rate of decomposition of ammonia.