• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigating energy changes during displacement reactions

Extracts from this document...


Investigating energy changes during displacement reactions Aim To find whether the position of a metal in the reactivity series affects how much energy is released during displacement reaction. Introduction A displacement reaction is a reaction with a metal high in the reactivity series, which displaces one below it. For example, calcium could displace iron in a reaction, as it is higher in the reactivity series. (See diagram below). Potassium Most Reactive Sodium Calcium Magnesium Zinc Iron Tin Copper Least Reactive Displacement reactions are exothermic reactions, which means they give off heat when reacted. ...read more.


Apparatus 25cm copper sulphate 2g zinc (powdered) 2g iron (powdered) Measuring cylinder Thermometer Beaker Glass rod Method Measure in a measuring cylinder 25cm of copper sulphate (solution) and pour into a beaker then take the temperature of the solution with a thermometer. Then weigh 2g of iron on the scales and then add it into a beaker of copper sulphate, stir it until it dissolves. After stirring it take the temperature, and record it. Repeat this method again by using iron instead of zinc, and take the temperature before adding it to the copper sulphate. ...read more.


With the reaction of copper sulphate with iron, the temperature was only 33�C. This proves that a metal higher in the reactivity series gives off a bigger exothermic reaction. This means that my prediction was correct. Evaluation The experiment I think was accurate but not reliable, this is because I could have taken more replicates, so this would have given me a definite answer to my prediction. Apart from taking more replicates I would improve my experiment by timing how long I have stirred the mixture for. I would do more experiments with different metals from the reactivity series because this would prove my theory of a metal higher in the reactivity series giving off a bigger exothermic reaction. The metals I may use would be e.g. tin, magnesium, sodium and potassium. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Changing Materials - The Earth and its Atmosphere section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Changing Materials - The Earth and its Atmosphere essays

  1. The aim of this experiment is to determine the order of the reactivity series ...

    Key Variables The key variables involved in this experiment are independent, dependent fixed variables The independent variable is the factor that is changed. The thing that is changed in this experiment is the type of metal carbonate used.

  2. Investigating The Reactivity Of The Metals Iron, Magnesium, Zinc, Copper And Calcium And Their ...

    20.2�C 180 34.6�C 20.5�C 20.4�C Due to the time limit on using the temperature probe only a few of the metals were tested.

  1. Chemical Reactions in the Kitchen

    If people misuse the amount of food they eat then they will gain a lot of weight. However, if people under eat the amount of food they should be eating then they will most likely lose weight and probably become anorexic.

  2. Investigating Phase Changes

    At 37 degrees Celsius, a larger amount of the unknown pure substance has begun to liquefy. At 47 degrees Celsius, the remaining solid clumps together and floats in the liquefied portion of the substance. At 59 degrees Celsius, the solid portion sinks to the bottom of the test tube.

  1. Alternative Energy Sources

    Hydroelectric energy is reaching its practical limits while solar, wind and geothermal energy is only suitable for certain purposes only. There are still billions of barrels of oil to be dug up from the earth's crust but even though, theoretically speaking, the 700 billion barrels of oil we dig up

  2. Extraction of metals and Alloys.

    It is also resistant to corrosion and can be easily bent into any shape. Aluminium is a good conductor of heat and electricity. It can be polished to achieve a highly reflective surface. Aluminuim can be used for making aircraft, lightweight vehicles, and ladders because it has a low density and it is strong.

  1. Find out how magnesium ribbon reacts with various chlorides.

    =18 4th shell 4s 4p 4d 4f 2 + 6 + 10 + 14 =32 > Each successive shell contains a new type of sub-shell. > The 1st shell contains 1 sub-shell, the second sub-shell contains 2 sub-shells, and so on. Orbitals. How do the electrons fit into the sub-shells?

  2. Investigating displacement reactions to find out the order of reactivity of some metals.

    In a redox reaction one reactant loses electrons (oxidation) while the other gains the electrons (reduction). For example Zinc metal will displace Copper ions from solution because Zinc is higher than Copper in the electrochemical series. Zinc ions and Copper atoms (metal)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work