A single particle of X combines with a single particle of Y in a one-step reaction to form two particles of Z. The reaction is exothermic and reversible. $\text{X} + \text{Y} \rightleftharpoons 2\text{Z}$. Three statements about the forward and reverse reactions are given. Which statements are correct?
- A1 only
- B2 and 3
- C2 only
- D3 only