ATI TEAS: CONDITIONS TO AFFECT CHEMICAL REACTIONS

Which substance can speed up a chemical reaction without

undergoing a permanent chemical change?

A) Substrate

B) Reactant

C) Catalyst

D) Product

Which term describes a reaction where heat is released?

A) Exothermic

B) Endothermic

C) Entropic

D) Anabolic

In a dynamic equilibrium, what can be said about the rate

of the forward reaction and the reverse reaction?

A) Forward is faster

B) Reverse is faster

C) Both are equal

D) Both stop completely

An endothermic reaction has a positive ΔH. What does ΔH

represent?

A) Pressure change

B) Temperature change

C) Change in heat

D) Change in volume

Which factor does NOT influence the rate of a chemical

reaction?

A) Catalyst presence

B) Light intensity

C) Particle size

D) Color of reactants

According to Le Chatelier's principle, if a system at

equilibrium is disturbed, the system will:

A) Stop the reaction

B) Shift to counteract the disturbance

C) Increase temperature spontaneously

D) Decrease pressure spontaneously