Energy Changes in Reactions (2)

Added by Dr. Andrew Pulham on Dec 15, 2008

This activity investigates a series of reactions by measuring the temperature change that accompanies them. Graphs from experiments are used to show the link between temperature and energy change. Students are also shown how to identify reactions as being exothermic or endothermic.

This item teaches:

  • the definition of an endothermic reaction
  • the definition of an exothermic reaction
  • about enthalpy change
  • about the transfer of energy as a result of chemical reactions

Contents

Objectives

  • To investigate a series of reactions and measure the temperature change that accompanies them
  • To note the link between temperature change and energy (enthalpy) change
  • To identify the reactions as being exothermic or endothermic
  • To extrapolate a graph of temperature change with time to estimate the maximum temperature change, in order to compensate for heat loss

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Topic:
Chemical Reactions
Product:
Inorganic Chemistry
Tags:
exothermic, enthalpy, endothermic, energetics, thermochemistry, energy, temperature
Viewed:
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