How to speed up chemical reactions (and get a date) - TED-Ed
2. What other analogy could you come up with for one of the factors affecting the rate of a chemical reaction?
Thursday, September 24, 2015
September 24, 2015
The following video is about 5 minutes in length. You should be able to click directly on it. Watch it and comment on the two things listed below. (Probably inspired by "My Chemical Romance".)
1. What concept did it help clarify or solidify for you?
2. What other analogy could you come up with for one of the factors affecting the rate of a chemical reaction?
2. What other analogy could you come up with for one of the factors affecting the rate of a chemical reaction?
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This clarified the surface area increasing likelihood for reaction. Before I did not understand why a smaller particle would be more likely collide, now I understand.
ReplyDeleteAnother analogy for the increasing likelihood of a reaction is giving chocolate to an angry girl (haha) can increase the chances of her becoming your friend again (lowering activation energy).
This video clarified the surface area increasing the likelihood for reaction for me as well. It also clarified to me that a smaller volume equals a smaller area for particles to collide, creating more collisions.
ReplyDeleteAnother analogy for increasing the amount of particles and decreasing the amount of time available for collision would be an increase in traffic (increase of particles) at rush hour, when everyone is rushing to get to work on time(time restriction). People driving would be more willing to make riskier decisions while driving and thereby would increase the likelihood of colliding with another vehicle.
The video clarified how the catalyst works. Before I was confused how does it work or how can it lower the activation energy.
ReplyDeleteAnother analogy that I can think about is by putting fire and making someone walk, which will be very hot and make him walk faster.
this video helped clarify the relationship between surface area and collisions. the video compared surface area to children walking in a group. When the kids split up, the person towards the center of the group was exposed and more succeptible to collisions.
ReplyDeletean analogy i came up with was the difference between taking a test and doing homework. Durring a test which is timed, you must work faster in order to complete the problems in the alotted time. This could be similar to raising the temperature of a reaction.
The video solidified how to make collisions more likely by reducing total volume, increasing number of particles, and adding heat so they move fasted and run into each other more often!
ReplyDeleteAn analogy that is related to this is in Bambi when the forest caught on fire reducing the total livable area that the animals could inhabit. This increases the amount of animals due to running the sleeping animals out of their dens. With all the animals running around to escape the fire, they are much more likely to run into each other!
This video helped me understand the a catalyst not only speeds the reaction by lowering the activation energy, but also orients the molecules so they can react properly.
ReplyDeleteAnalogy: If there is a lot of food at a party, adding more guests allows the food to be eaten more quickly.
Watching this video explains the collision theory and the factors that determine the likelihood of a collisions to happen. This really helped clarify how these certain factors actually affect the rate of reaction specifically surface area and catalyst. I think that watching and using comparisons help people understand complex processes in chemistry.
ReplyDeleteMy analogy would be when the quarterback throws the ball to the wide receiver. This act has to be in correct orientation or the wide receiver may drop the ball or the ball may be intercepted do to the ball being under/over thrown by the quarterback. As the wide receiver runs to catch the ball they must position themselves to where the ball is going in order to make the catch. This would be like the molecules making a collision in correct orientation to successfully react.
Thanks for your responses!
ReplyDelete