Ethanol+Bottle+Boom

Ethanol Bottle Boom By: Dipesh Mehta Materials: · Eye Protection · Ethanol · Five gallon water jug · Matches · Glass Shield · Courage · Stopper

Procedure 1. Gather up all materials. 2. Make sure you are in an open space 3. With eye protection on, spray ethanol around the inside of five gallon jug 4. Pick up jug and cover hole. 5. Turn the jug so the ethanol spreads to each side of the bottle. 6. Stopper the ethanol from leaving 7. Light match and drop inside for reaction

Combustion Reaction Formula C2H5OH + 3 O2 → 2 CO2 + 3 H2O(l)

Explanation

Who has ever played the card games speed or goldfish? Which game takes longer to play? Usually it’s goldfish. Now why you might ask did I bring this up? Well when we play card games like speed, our reaction times are faster because there are two players playing and their card placement timings are faster as the whole point of the game is to get rid of all your cards fast. When people play goldfish with a group of people, the time to finish the game is a lot longer. People all have to ask each other something, and then they might have to go fish or exchange cards. Well these two games can help you relate to surface area. This demonstration of ethanol in a bottle is all about surface area affecting reaction time and a combustion reaction. A combustion reaction creates two products, CO2 and H2O when the reactant and O2 react. Surface area in chemistry affects how fast or how long a reaction will take place. The greater the surface area, the faster the reaction, while the lower the surface area the faster the reaction. Speed can be considered to be a game that deals with greater surface areas since there are two people reaction time is faster because of the “molecules” bouncing around quickly back and forth. When you play goldfish it is the opposite. The reaction time is slow because the molecules take longer to reach from one end to another and everyone has a slow reaction when they ask “Do you have any eights?” When molecules of ethanol are placed in the 5 gallon bottle, the molecules are exposed to more area and thus can bounce off the sides of the bottle and collide with each other. When you add ethanol to the bottle, the molecules are individually being separated and they are more exposed compared to when they are on a table where only the surface molecules are exposed causing a slower reaction. When the match is placed inside, a combustion reaction takes place creating CO­2 and H2O.

Fun Facts: Ethanol when used as E-85 ethanol is actually more costly than gasoline because of the distribution costs The enclosed reaction taking place goes on when starting your car. Not exactly with ethanol but when you turn your key, the ignition shoots into a piston where the molecules are colliding with each other and with the single

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