Physics Formula
Specific Heat Formula
Calculates heat transferred during a temperature change.
Formula Summary
Specific Heat
Calculates heat transferred during a temperature change.
- Category
- Physics
- Equation
- Q = m × c × ΔT
- Calculator
- Use Specific Heat Calculator →
Equation
Q = m × c × ΔT
Variables
- Q = heat
- m = mass
- c = specific heat capacity
- ΔT = temperature change
How to Use This Formula
- Identify the known values from the problem statement.
- Convert all values into compatible units.
- Substitute the values into the equation and calculate the result.
- Check that the final answer has the correct unit and meaning.
Explanation
The specific heat formula calculates the amount of heat energy required to change the temperature of a substance. It depends on the substance's mass, specific heat capacity, and temperature change.
Worked Example
Heating 2 kg of a material with specific heat capacity 500 J/kg·°C by 10°C requires 2 × 500 × 10 = 10000 J of heat.
Common Mistakes
- Using incorrect specific heat values for materials.
- Mixing temperature units.
- Forgetting that mass affects the required heat energy.
Applications
- Thermal engineering calculations.
- Laboratory heat transfer experiments.
- Studying temperature changes in materials.