Consider the reaction equilibrium $\mathbf{X}(\mathrm{g}) \leftrightharpoons \mathbf{Y}(\mathrm{g})+\mathbf{Z}(\mathrm{g})$ at a constant temperature T and at different values of total pressure P . Let V denote the volume of the reacting system at equilibrium. Starting with 1 mole of $\mathbf{X}$, the equilibrium is established for different values of P. Assuming an ideal gas behaviour, the correct plot is

• Correct answer
  A

  
  
• B

  
  
• C

  
  
• D

  
  

Hence, the correct answer is option: 'A'.