Coffee Cup Calorimeter Calculator

A coffee cup calorimeter measures heat exchanged during a chemical reaction by tracking temperature changes in a solution — this calculator runs those same calculations for you. Select your Calculation Type (Heat Change ΔQ, Temperature Change ΔT, or Final Temperature), then enter the Mass of Substance, Specific Heat Capacity, and the known temperature or energy values to get your Primary Result. Secondary outputs include Temperature Change (ΔT) and Total Heat Capacity.

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J/g·°C
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Results

Primary Result

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Temperature Change (ΔT)

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Total Heat Capacity

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Frequently Asked Questions

What is a coffee cup calorimeter?

A coffee cup calorimeter is a simple calorimeter made from nested styrofoam cups that measures heat changes at constant pressure. It's commonly used in chemistry labs to determine the enthalpy changes of chemical reactions.

How do you calculate heat change in calorimetry?

Heat change (ΔQ) is calculated using the formula: ΔQ = m × c × ΔT, where m is mass, c is specific heat capacity, and ΔT is the temperature change. This follows the principle of conservation of energy.

What is the calorimetry equation?

The fundamental calorimetry equation is based on conservation of energy: Qgained + Qlost = 0. For a single substance, Q = mcΔT, where Q is heat energy, m is mass, c is specific heat capacity, and ΔT is temperature change.

How do you solve calorimetry problems?

To solve calorimetry problems: 1) Identify known and unknown variables, 2) Apply the heat equation Q = mcΔT, 3) Use conservation of energy (heat lost = heat gained), 4) Solve for the unknown variable algebraically.

What is specific heat capacity?

Specific heat capacity is the amount of heat energy required to raise the temperature of 1 gram of a substance by 1°C. Water has a high specific heat capacity of 4.18 J/g·°C, making it useful as a reference in calorimetry.

How to find the calorimeter constant?

The calorimeter constant is determined by measuring the heat capacity of the calorimeter itself. It's found by conducting a calibration experiment with known quantities and temperatures, then calculating the heat absorbed by the calorimeter.

Where is calorimetry used in industry?

Calorimetry is used in pharmaceuticals for drug stability testing, food industry for nutritional analysis, materials science for thermal properties, and chemical industry for reaction optimization and safety assessment.