specific heat capacity

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GCSE Science (physics) Note on specific heat capacity, created by s.ghillean on 22/02/2014.
s.ghillean
Note by s.ghillean, updated more than 1 year ago
s.ghillean
Created by s.ghillean about 10 years ago
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Temperature and heat are not the same thing:

temperature is a measure of how hot something is

heat is a measure of the thermal energy contained in an object.

Temperature is measured in °C, and heat is measured in J. When heat energy is transferred to an object, its temperature increase depends upon the:

the mass of the object the substance the object is made from the amount of energy transferred to the object

For a particular object, the more heat energy transferred to it, the greater its temperature increase.

The specific heat capacity of a substance is the amount of energy needed to change the temperature of 1 kg of the substance by 1°C. Different substances have different specific heat capacities.

water has a heat capacity of 4181 j / kg °C  whereas oxygen has 918

E = m × c × θ   is the equation needed to workout specific heat capacity

E is the energy transferred in joules, J m is the mass of the substances in kg c is the specific heat capacity in J / kg °C θ (‘theta’) is the temperature change in degrees Celsius, °C

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