In this experiment we were testing how temperature effects chemical reactions. My hypothesis was correct, if the temperature was higher then the reaction would occur quicker than it would if the temperature was cooler. The variables tested were room temperature water, chilled water and heated water.
The room temperature was 74.8 Fahrenheit. When the Alkine seltzer tablet was introduced to the water it fizzed immediately. As it grew smaller it rose to the top, I feel this had no relevance, but after thirty-six seconds the reaction concluded. The only peices of the tablet that was left were flakes that remained at the surface of the water. The water temperature dropped .7 degrees Fahrenheit.
The chilled water was just 133mL of water with three ice cubes. The temperature was at 58 degrees Fahrenheit. The tablet took one minute and eleven seconds to dissolve. The temperature was then had risen .2 degrees Fahrenheit. It had completely dissolved the water was clear.
The heated water was at fifty degrees celsius. The tablet dissolved very fast. It only took 21.1 seconds. The water was full of tiny, little bubbles. The temperature had dropped .3 degrees Celsius.
For a chemical reaction to take place the reactants have to make physical contact with each other. I conclude that heat controls the frequency of these encounters. Meaning it also has control of the rate that the products are formed at. By increasing the heat, the rate of the chemical reaction is also increased. A chemical reaction at a higher temperature delivers more energy into the reactants and increases the reaction rate by causing more collisions between particles. I do not believe any mistakes were made that could have changed the results.
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