Heat Gained Formula:
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Definition: This calculator estimates the thermal energy absorbed by water based on its mass, specific heat capacity, and temperature change.
Purpose: It helps students, engineers, and scientists determine the energy required to heat water or the energy released when water cools.
The calculator uses the formula:
Where:
Explanation: The formula calculates the thermal energy transfer based on water's properties and temperature difference.
Details: Accurate heat calculations are essential for designing heating systems, understanding thermal processes, and energy efficiency assessments.
Tips: Enter the water mass in kg, specific heat capacity (default 4186 J/kg·K for water), and temperature change in Kelvin. All values must be > 0.
Q1: Why is specific heat capacity important?
A: It determines how much energy is needed to change a substance's temperature. Water has a high specific heat capacity compared to many other substances.
Q2: Can I use this for other liquids?
A: Yes, but you must adjust the specific heat capacity to match the liquid you're working with.
Q3: Why use Kelvin for temperature change?
A: The size of 1 Kelvin equals 1°C, but Kelvin is the SI unit for thermodynamic temperature. The calculation works the same with °C for temperature differences.
Q4: What's the typical specific heat of water?
A: Pure water at 25°C has a specific heat of 4186 J/kg·K, but this varies slightly with temperature and impurities.
Q5: How do I convert the result to calories?
A: Divide the result in Joules by 4.184 to get calories (1 cal = 4.184 J).