Regents Chemistry Exam August 2024 Question 39
39 Which equation represents a physical equilibrium?
Solution:
A double way arrow represents a reaction that can proceed in both directions and reach equilibrium. Choices 2 and 4 can be eliminated since they have one way arrows. Physical equibrium refers to a reaction where a substance transitions between two different physical states ( solid, liquid or gas) . In choice 1, carbon dioxide goes from gaseous to solid state and vice versa. Choice 1 is the correct answer choice.
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