Calorimetry Calculator
q = mcΔT heat transfer for any sample.
Enter your values
water = 4.184
ⓘ Live results
Results
- Heat q
- 20920 J
- In kilojoules
- 20.92 kJ
- In calories
- 5000 cal
- Direction
- Absorbed (endothermic)
- ΔT
- 50 °C
Quick answer
Calorimetry uses q = mcΔT, where q is heat in joules, m is mass in grams, c is specific heat and ΔT is the temperature change.
q = m × c × ΔT
How to use the Calorimetry Calculator
- 1Enter the sample mass in grams.
- 2Enter the specific heat of the substance.
- 3Enter the start and final temperatures.
Inputs explained
- Specific heat(J/g·°C)
- water = 4.184
Worked example
Using the values the calculator loads with:
Inputs
- Mass100 g
- Specific heat4.184 J/g·°C
- Start temperature25 °C
- Final temperature75 °C
Results
- Heat q20920 J
- In kilojoules20.92 kJ
- In calories5000 cal
- DirectionAbsorbed (endothermic)
- ΔT50 °C
Frequently asked questions
What is the specific heat of water?
4.184 J/g·°C for liquid water, which is why water is the standard calorimeter fluid.
Why is my answer negative?
A negative q means the sample cooled and released heat to its surroundings.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.