Heat of Combustion

  1. A fuel is a chemical substance that burns in oxygen to produce heat energy.   2. Combustion is a chemical reaction between a fuel and oxygen to release heat. Combustion is always an exothermic reaction.   3. The heat of...

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Heat of Neutralisation

  1. Neutralisation is the reaction between an acid an a base to form a salt and water.   2. Some examples of neutralisation reaction are as follows. \(HNO_3(aq)\)     +     \(NaOH(aq)\)   ...

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Heat of Displacement

  1. When a more electropositive metal displaces a less elextropositive metal from a solution of its salt, heat change occurs.   2. The heat of displacement is the heat change when one mole of a metal is displaced from its salt solution by...

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Heat of Precipitation

  Heat of reaction 1. The amount of heat given out or absorbed in a chemical reaction depends on the amount of reactants used.   2. Heat of reaction is the heat change when the number of moles of reactants as shown in the chemical...

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Gas Laws

  Pressure, Temperature and Volume of a Gas based on Kinetic Theory 1. Kinetic theory of gas describes gas as molecules that move in a fast and random manner and often collide elastically with each other as well as the walls of the container to...

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Specific Latent Heat

  1. Figure 4.15 shows ice changing from solid to liquid when left at room temperature.   2. Figure 4.16 shows water turning into water vapour when boiling continues.   3. While in Form 1, you have learned about the changes...

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