Exothermic Reaction Lab
In the lab testing the heat of a reaction to understand changes in enthalpy in an exothermic reaction, the group hypothesized that if the amount of reactant is changed then the amount of heat produced (exothermic) will increase. This hypothesis was supported through the data as each of the six trials produced heat and the larger the piece of magnesium the larger the change in heat was. In the first trial the group had .085 grams of Mg and after being placed in 3 ml of 21.8℃ HCl the temperature of the water went up to 32.6℃. The change in temperature was 10.8℃. In a trial with a larger sample of Mg the change in temperature was also larger . For example in trial 2 the group had used .305 grams of Mg and the change in temperature was 42.6℃. These data points prove that in an exothermic reaction between HCl and Mg the larger the amount of reactants used the larger the change in temperature will be.
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In an exothermic reaction the materials outside of the reaction will gain the heat that the reaction produces. The exothermic reaction releases heat when the bonds of the reaction are formed (Mg + HCl → MgCl2 + H2). The more large amounts of reactant used in the process the more product is able to be made. When more product is being formed that means that more heat will be given off as more bonds form. The trend in the data shows that the larger the piece of Mg used in the reaction the larger amount of total heat
In an exothermic reaction the materials outside of the reaction will gain the heat that the reaction produces. The exothermic reaction releases heat when the bonds of the reaction are formed (Mg + HCl → MgCl2 + H2). The more large amounts of reactant used in the process the more product is able to be made. When more product is being formed that means that more heat will be given off as more bonds form. The trend in the data shows that the larger the piece of Mg used in the reaction the larger amount of total heat