LT#14 Kinetics & Equilibrium

Which of the following increase the reaction rate?

• less surface area

• lower temperature

• increasing pressure

• increased concentration

A catalyst works by

• changing the order of the reaction
• increasing the temperature
• lowering the activation energy
• making the activated complex

If the temperature is reduced, a reaction rate will ______

• increase

• decrease

• stay the same

The ____________ states that atoms, ions, or molecules must collide in order to react.

• transition state

• activation energy

• rate law

• collision theory

Rate of chemical reaction means

• amount of product formed
• speed of reaction
• concentration of reacting particles
• combining reactants with products

Grinding a seltzer tablet into powder increases the rate of reaction due to...

• increased concentration of reactants
• increased surface area
• increased speed of particles.
• better orientation of reactants

_______ refers to how much solute is dissolved in

a solution.

• Surface Area

• Catalyst

• Temperature

• Concentration

A temperature increase causes the particles

• to slow down

• move faster

• collide higher

• in the right order

What type of reaction is this?

• Endothermic
• Exothermic

Under the collision theory, the particles must collide with  ____ and ____ for a reaction to occur.

• sufficient rate and sufficient energy
• sufficient surface area and correct orientation
• sufficient catalyst and sufficient energy
• sufficent energy and correct orientation