Temperature Change Formula:
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Definition: This calculator determines the temperature change in a substance when a certain amount of heat energy (in BTUs) is applied.
Purpose: It helps engineers, HVAC professionals, and students understand how heat energy affects temperature in materials.
The calculator uses the formula:
Where:
Explanation: The heat energy is divided by the product of mass and specific heat capacity to determine temperature change.
Details: Accurate temperature change predictions are crucial for HVAC system design, material processing, and thermal management.
Tips: Enter the heat energy in BTUs, mass in pounds, and specific heat capacity (default 1.0 BTU/lb·°F for water). All values must be > 0.
Q1: What is a BTU?
A: A British Thermal Unit is the amount of heat required to raise 1 pound of water by 1°F.
Q2: What are typical specific heat values?
A: Water = 1.0, Aluminum = 0.22, Steel = 0.12, Air = 0.24 (all in BTU/lb·°F).
Q3: Can this calculate cooling as well as heating?
A: Yes, the result will be negative if heat is removed (Q is negative).
Q4: How does mass affect temperature change?
A: More mass means less temperature change for the same heat input.
Q5: Is this calculation for phase changes?
A: No, this only applies when there's no phase change (e.g., water stays liquid).