In the Contact process, sulfur dioxide reacts with oxygen to produce sulfur trioxide. In the Haber process, nitrogen reacts with hydrogen to produce ammonia. Which statement about these processes is correct?
- A$K_p$ for the Haber process has no unit.
- BIn the Contact process, the value of $K_p$ falls when pressure is increased at constant $T$.
- CThe Haber process uses a homogeneous catalyst.
- DWhen $\mathrm{V}_2\mathrm{O}_5$ is used in the Contact process, the position of equilibrium is unchanged.