Specific heat calculator
Fill in what you know and leave the unknown box empty — it works out whichever one is missing. Nothing is uploaded; the arithmetic happens in your browser.
The formula
q = mcΔT
Where this usually goes wrong
Water is 4.18 J/(g·°C). ΔT is the change, so a drop makes q negative — heat leaving, not an error.
Worked example
Heating 100 g of water by 25 °C takes 10,450 J.
Those numbers are already in the boxes above — press Work it out to see it, then change them for your own.
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