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MDCAT
Chemistry
2023

Chemistry · Chemical Equilibrium

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

Homogeneous liquid equilibria:

Options
  • A

    Are not affected by temperature change

  • B

    May or may not be affected by pressure change

  • C

    May or may not be affected by temperature change

  • D

    Are not affected by pressure change

Explanation

Option C is correct because the equilibria of homogeneous liquids can be affected by changes in both temperature and pressure.

"Are not affected by temperature change" is incorrect because changes in temperature can alter the equilibrium state of a homogeneous liquid system, shifting the balance between reactants and products.

"May or may not be affected by pressure change" is partially correct. In many cases, pressure changes do not significantly affect the equilibrium of a homogeneous liquid system. However, there are exceptions, especially when the system involves gases that are in equilibrium with the liquid phase.

Option C is correct because the equilibria of homogeneous liquids can be affected by changes in both temperature and pressure.

"Are not affected by pressure change" is incorrect because pressure changes can influence the equilibrium state of a homogeneous liquid system, particularly if the system contains gases in equilibrium with the liquid.

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Tagged under Chemistry · Chemical Equilibrium · 2023