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TYPES OF ENERGY STORE - examples explained (a) Examples of chemical energy stores Doc Brown's Physics Exam Revision Notes: This page will help you answer questions such as ... What is a chemical energy store? Give some examples of chemical energy stores. Examples of chemical energy stores are explained Index of types of energy stores/transfers
Measurement of the efficiency of a fuel using a simple calorimeter
When a fuel is burned, the chemical potential energy contained in the fuel is converted to thermal energy. The diagram shows a simple calorimeter system for measuring the heat given out by a liquid fuel burner. The experiment data for burning four fuels A, B, C and D is given below. Typically, 100 ml (100g) of water is used in the calorimeter to 'collect' the thermal energy ('heat') given out. The mass of fuel burned and the temperature rise of the water are given. A relative measure of the thermal energy output of the fuel per unit mass of fuel (relative efficiency) is easily obtained by dividing the temperature rise by the mass of fuel burned. The most efficient fuel will give the biggest ratio.
Sections 6. and 7. from Energy Changes in Chemistry give you lots more details on calorimeter experiments. (GCSE chemistry notes) Keywords, phrases and learning objectives on chemical energy stores
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