Online Thermodynamics & Heat Quantity Calculator
Compute heat energy Q transferred during temperature changes. Useful for physics students, heating engineers, and thermal design calculations.
How to use
- Input substance mass m in kg.
- Specify specific heat capacity c (J/(kg·°C)) or choose substance.
- Input initial temperature t1 and target temperature t2.
- View resulting thermal heat energy Q in Joules, kJ, or kWh.
Calculation Example
Heating 10 liters (10 kg) of water from 20 °C to 80 °C (c = 4200 J/(kg·°C)):
Temperature delta: ΔT = 80 - 20 = 60 °C.
Heat quantity: Q = c * m * ΔT = 4200 * 10 * 60 = 2,520,000 J (2.52 MJ or ≈ 0.70 kWh).
Calculation Methodology
Sensible heat exchange formula without phase change: Q = c * m * ΔT, where c is specific heat, m is mass, and ΔT is temperature change.
Frequently Asked Questions
What is specific heat capacity?
The amount of heat required to raise the temperature of 1 kilogram of a substance by 1 degree Celsius.
What units measure thermal heat energy?
Joules (J), kilojoules (kJ), calories (cal), or kilowatt-hours (kWh).
What does a negative Q indicate?
A negative value indicates heat release and cooling to the environment.
What is the specific heat capacity of liquid water?
Water has a high specific heat capacity of approximately 4184–4200 J/(kg·°C).
Related Tools
Compound Interest Calculator
Calculate monthly investment growth with compounding interest.
Cash Loan Calculator
Calculate monthly payment, total interest, and comparison between annuity and differentiated loans.
Mortgage Early Payoff
Evaluate interest saved and mortgage term reduction with extra principal payments.
Customs Clearance Calculator (EU & USA)
Calculates vehicle customs clearance taxes in Ukraine: import duty, excise tax, VAT, and US import delivery fees.