Specific Heat & Thermal Energy Transfer Calculator (Q = mcΔT)
Calculate thermal heat energy transfer in Joules, BTUs, and calories from substance mass, specific heat capacity (water, metals), and temperature change.
Calculated Results
Frequently Asked Questions
What does the specific heat formula Q = mcΔT mean?
Q represents thermal heat energy in Joules; m is the mass of the substance in grams; c is the specific heat capacity in J/g·°C; and ΔT is the temperature change (T_final - T_initial).
Why does water have such an extraordinarily high specific heat capacity?
Water's specific heat capacity (4.184 J/g·°C) is exceptionally high due to extensive hydrogen bonding between molecules. This enables oceans to stabilize planetary climates and makes water an ideal automotive and industrial coolant.
What is the difference between a calorie and a Joule?
1 calorie is the amount of thermal energy required to raise the temperature of 1 gram of water by 1°C. Exactly 1 calorie equals 4.184 Joules. 1 BTU equals 1,055.06 Joules.
Does Q = mcΔT apply during phase changes (boiling or freezing)?
No. During phase changes (melting, freezing, boiling, or condensation), temperature remains strictly constant (ΔT = 0) while latent heat of fusion or vaporization (Q = m·L) is absorbed or released.