Temperature change
What Temperature change means in Combined Science GCSE, as defined for AQA.
Definitions of Temperature change
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Reference: AQA
The difference between the final and initial temperatures of a system, calculated as ∆θ = θ_final − θ_initial and measured in degrees Celsius, °C.
The temperature drop can be measured with a thermometer in an insulated cup, and the surroundings cooling shows the reaction is endothermic.
The difference between the final and initial temperatures of a system, calculated as final temperature minus initial temperature.
The rise in temperature, which is directly proportional to the energy transferred when mass and material are unchanged.
Calculated by subtracting the initial temperature from the final steady temperature recorded during the investigation.
Represented by ∆θ, meaning final temperature minus initial temperature, in degrees Celsius or kelvin.
Topics that use Temperature change
- Energy changes in systems (AQA GCSE)
- Energy transfer during exothermic and endothermic reactions (AQA GCSE)
- Temperature changes in a system and specific heat capacity (AQA GCSE)
Related terms
- c = E ÷ (m × ∆θ)
- Change in thermal energy
- E = mc∆θ
- J/kg °C
- Mass
- Specific heat capacity
- Combustion
- Control variables
Using Temperature change in the exam
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