Unit 1: Reaction Kinetics Lesson 5: Kinetic Energy Distributions

What might gas particles look like if we could see them? Play gas particle simulation and have students make 10 observations concerning the particles in the box, then discuss – 10 min

Kinetic Energy Distribution *Remember: temperature is a measure of the average kinetic energy of the particles in a substance 5 min

Brain Break! 5 min

Kinetic Energy and Reaction Rate (Graph on pg. 18 of textbook.) As temperature increases, more particles possess the minimum energy required to react, so the rate increases. (Though increasing temperature also increases the number of collisions, this effect has less impact than the increase in energy of the particles.) 5 min

Reaction Rate Rule-of-Thumb For a SLOW reaction, a 10°C temperature increase DOUBLES the reaction rate.

Practice: Pg. 19 #29-32 15 min