Worksheet: Pressure Changes in Equilibria

In this worksheet, we will practice predicting the effect of pressure on a reversible reaction by comparing molar amounts of reactant and product gases.


A cylinder at 2 0 C contains liquid carbon dioxide in equilibrium with carbon dioxide gas. Gas is released from the cylinder at a constant rate with no change in temperature, and the system remains at equilibrium throughout this process. If the initial pressure in the cylinder is 65 atm, which of the following graphs most accurately describes the change in pressure in the cylinder over time?

  • A
  • B
  • C
  • D
  • E

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