Specific Heat Capacity Relates Temperature and Energy Flashcards
What does heating a substance do in terms of thermal energy?
Increases the energy in its thermal energy store
What is this referred to as?
The internal energy of a substance
What is temp a way of measuring?
The average internal energy of a substance
However, it can take…
More energy to increase the temp of some materials than others
What do materials that need to gain lots of energy to warm up also release?
Loads of energy when they cool down again
What do these materials store?
A lot of energy for a given change in temp
What is the change in energy stored in a substance when you heat it related to?
The change in its temp by its specific heat capacity
What is the specific heat capacity of a substance?
The energy required to change the temp of an object by 1°C per kilogram of mass
What’s waters specific heat capacity?
4200 J/kg°C
What is the formula for change in thermal energy?
Change in thermal energy = mass x specific heat capacity x change in temp
What is the symbol equation for change in thermal energy?
ΔQ = m x c x ΔT
