Question

a state in which opposing forces or processes are balanced
the general form of an equilibrium reaction
another name for law of mass action
a system in which matter and energy do not cross the systems boundary
expression indicating that reactant formation is favoured
this reaction proceeds at a faster rate when thermal energy is added to a system
expression indicating that product formation is favoured
this reaction proceeds at a faster rate when thermal energy is removed from a system
expression indicating approximately the same reactant and product formation
a rule that states that if a chemical system at equilibrium is distributed the system will undergo a shift

1. equilibrium
2. closed system
3. law of chemical equilibrium
4. $k_{eq} > 1$
5. $k_{eq} < 1$
6. $k_{eq} = 1$
7. $aa + bb \

ightleftharpoons cc + dd$

1. exothermic reaction
2. endothermic reaction
3. le chateliers principle

Explanation:

Step1: Match definitions

• “a state in which opposing forces or processes are balanced” matches “equilibrium” (1).
• “the general form of an equilibrium reaction” matches “aA + bB ⇌ cC + dD” (7).
• “another name for law of mass action” matches “law of chemical equilibrium” (3).
• “a system in which matter and energy do not cross the system’s boundary” matches “closed system” (2).
• “expression indicating that reactant formation is favoured” matches “\(K_{eq}<1\)” (5).
• “this reaction proceeds at a faster rate when thermal energy is added to a system” matches “endothermic reaction” (9).
• “expression indicating that product formation is favoured” matches “\(K_{eq}>1\)” (4).
• “this reaction proceeds at a faster rate when thermal energy is removed from a system” matches “exothermic reaction” (8).
• “expression indicating approximately the same reactant and product formation” matches “\(K_{eq} = 1\)” (6).
• “a rule that states that if a chemical system at equilibrium is disturbed the system will undergo a shift” matches “Le Chatelier's principle” (10).

Answer:

1. equilibrium, 2. closed system, 3. law of chemical equilibrium, 4. \(K_{eq}>1\), 5. \(K_{eq}<1\), 6. \(K_{eq} = 1\), 7. aA + bB ⇌ cC + dD, 8. exothermic reaction, 9. endothermic reaction, 10. Le Chatelier's principle