How to speed up chemical reactions (and get a date) - Aaron Sams

The video introduces Harriet, a chemist, who needs to speed up a chemical reaction. She uses a memorable analogy from her high school days about how she got a date for the dance. The key to getting a date, like a chemical reaction, requires a 'collision' with certain characteristics: correct orientation (knocking books out of hands) and enough energy. This parallels the collision theory in chemistry, where particles must collide with sufficient energy and correct orientation to react.

The chemist, inspired by Harriet's story, proposes five changes to schools (and chemical reactions) to increase the likelihood of 'book-dropping collisions' (and successful reactions).

Shrinking hallways makes collisions more frequent, increasing the chance of a successful 'date-getting' collision. Chemically, this is equivalent to lowering the volume of a reaction vessel, which brings particles closer together, leading to more collisions and a higher likelihood of effective collisions.

More students mean more potential collisions. In chemistry, increasing the number of available particles for collision provides more opportunities for reactions to occur.

Cutting down time between classes forces students to move faster, ensuring collisions have enough energy for 'book-dropping'. This is analogous to increasing the temperature of a reaction mixture, which makes particles move faster, increasing both the frequency and energy of collisions.

When students travel in packs, only those on the outside can collide. By splitting up, more individual students are exposed for collisions. This relates to increasing the surface area in reactions; breaking up clumps of particles exposes more reactive surface, allowing more collisions to occur.

A matchmaker makes it easier to get a date by coordinating the match, requiring less initial energy. In chemistry, a catalyst functions by lowering the activation energy needed for a reaction. It brings particles together in the correct orientation, facilitating the reaction without being consumed itself.