# 4.1.1.3 Energy changes in systems

## Content

The amount of energy stored in or released from a system as its temperature changes can be calculated using the equation:

change in thermal energy, ∆E, in joules, J

Content

Key opportunities for skills development

change in thermal energy = mass × specific heat capacity × temperature change

mass, m, in kilograms, kg

specific heat capacity, c, in joules per kilogram per degree Celsius, J/kg °C

temperature change, ∆θ, in degrees Celsius, °C

The specific heat capacity of a substance is the amount of energy required to raise the temperature of one kilogram of the substance by one degree Celsius.

MS 3b Change the subject of an equation

MS 3c Substitute numerical values into algebraic equations using appropriate units for physical quantities

Lessons

P2.2 - SHC Theory

P2.3 - SHC Mathematics

P2.4 - Required practical

Resources

Video xGE6DOSZxYYg_1bF.mp4

Pracicals

Specific Heat capacity of a student

Specific heat capacity of lead shot

The required practical SHC