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Thursday, February 14, 2019

Altering the Amount of Heat Produced When Magnesium Reacts with Sulphur

Altering the occur of Heat Produced When Magnesium Reacts with sulfuric acetous When energy in the hold of heat is inclined out of a reaction it is an energy-releasing reaction. energy-releasing reactions usually need activation energy, the energy to break the bonds in the chemicals and to toss off the reaction. Once the bonds are broken new stronger bonds are formed. In an exothermic reaction energy in the form so heat is given out to the surrounding when the products are formed. Therefore there is an average get hold in temperature energy is lost which results in a negative ?H. The outlet variable for this experiment is to conclude what changes can be made to qualify the heat energy when magnesium is reacted with sulphuric acid. Magnesium + Sulphuric Acid Magnesium Sulphate + Hydrogen Mg (s) + H2SO4 (a) MgSO4 (a) + H2 (g) There are umteen variables which can be changed in whatever way to effect the reaction, some of which are listed belo w- Volume of Sulphuric Acid Concentration of Sulphuric Acid Initial temperature of Sulphuric Acid Motion of liquid (speed of stirring) tot up and size of magnesium Purity of magnesium The extent of oxidation on the surface of the magnesium Addition of Catalysts Size of Container Temperature of surrounding environment push at which reaction is conducted Insulation of the test-tube Height of thermometer above the base of the test-tube Explaining variables In solutions of higher concentration, particles are closer together. They have a greater endangerment of colliding. Because there are more collisions the reaction set is greater. How does temperature affect the rate of a chem... ...by encasing each experiment to prevent any changes in temperature at the start of the reaction to the end of the reaction from affecting the experiment. Extensions to the investigation Computers could be used to carry out data logs of the temperature durin g the experiment to give a more reliable and more accurate account of the experiments and to help accredit patterns between concentration, heat produced and rate of reaction throughout each reaction. more concentrations of acid could be used to butt against if they also have kindred affects on the temperature rise. Different substances could be reacted to see if they behave similarly. More repeats could be carried out to qualify the findings. These could be done under different conditions to see how the reactions react under a colder or hotter environment.

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