according to le chateliers principle, a change in pressure affects the chemical equilibrium of the reaction…

according to le chateliers principle, a change in pressure affects the chemical equilibrium of the reaction system under what condition?\nthe reactants and the products are in the solid phase.\nthe reactants and the products are in the liquid phase.\nsome of the reactants or the products are in the gaseous phase.\nsome of the reactants or the products are solid, and some are liquid.

according to le chateliers principle, a change in pressure affects the chemical equilibrium of the reaction system under what condition?\nthe reactants and the products are in the solid phase.\nthe reactants and the products are in the liquid phase.\nsome of the reactants or the products are in the gaseous phase.\nsome of the reactants or the products are solid, and some are liquid.

Answer

Answer:

C. Some of the reactants or the products are in the gaseous phase.

Explanation:

Le Chatelier's principle states that when a system at equilibrium is subjected to a change in pressure, the system will shift to counteract that change. Pressure changes have a significant impact on gases because gases are compressible. Solids and liquids are nearly incompressible, so changes in pressure do not affect the equilibrium position of reactions involving only solids or liquids (options A, B, and D). However, when there are gases in the reaction (option C), a change in pressure (by changing volume, for example) will cause the equilibrium to shift. If the pressure is increased, the equilibrium will shift towards the side with fewer moles of gas (to reduce the pressure), and if the pressure is decreased, it will shift towards the side with more moles of gas (to increase the pressure).