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Specific Heat Capacity Objectives (a) define and apply the concept of specific heat capacity; (b) select and apply the equation E = mcΔθ; (c) describe.

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Presentation on theme: "Specific Heat Capacity Objectives (a) define and apply the concept of specific heat capacity; (b) select and apply the equation E = mcΔθ; (c) describe."— Presentation transcript:

1 Specific Heat Capacity Objectives (a) define and apply the concept of specific heat capacity; (b) select and apply the equation E = mcΔθ; (c) describe an electrical experiment to determine the specific heat capacity of a solid or a liquid;

2 OUTCOMES ALL MUST Be able to define specific heat capacity. Be able to select and apply the equation E = mcΔθ to a number of different situations correctly. MOST SHOULD Be able to describe an electrical experiment to determine the specific heat capacity of a solid or a liquid.

3 Specific Heat Capacity Different materials will lose their heat at different rates depending on a factor called their Specific Heat Capacity. The specific heat capacity of a material is the amount of energy (J) that is needed to raise the temperature of 1kg of the substance by 1 degree C. Its unit is written J/kg ˚C. Aluminium has a specific heat capacity of 880J/kg˚C. Steel has a specific heat capacity of 420J/kg˚C. Water has a specific heat capacity of 4200 J/kg˚C.

4 The energy needed to raise the temperature of a material is given by the equation: Energy needed (J) = specific heat capacity (J/kg˚C) x mass (kg) x change in temperature (˚C)

5 OUTCOMES ALL MUST Be able to define specific heat capacity. Be able to select and apply the equation E = mcΔθ to a number of different situations correctly. MOST SHOULD Be able to describe an electrical experiment to determine the specific heat capacity of a solid or a liquid.


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