Heat Capacity Calculator (Chemistry)

The Heat Capacity Calculator uses the formula Q = mcΔT to relate heat energy, mass, specific heat, and temperature change — four variables that describe how much energy a substance absorbs or releases when its temperature shifts. Select what to calculate (Heat Energy, Specific Heat, Mass, or Temperature Change), then enter the known values for mass, specific heat capacity, and initial/final temperatures to get your result. Secondary outputs include temperature change (ΔT) and heat capacity (C).

J/kg·°C

Energy required to raise 1 kg by 1°C

kg
J
°C
°C

Results

Calculated Value

--

Temperature Change (ΔT)

--

Heat Capacity (C)

--

More Chemistry Tools

Frequently Asked Questions

What is heat capacity?

Heat capacity is the amount of heat energy required to raise the temperature of an object by 1°C. It depends on both the material's specific heat and its mass.

What is the difference between heat capacity and specific heat?

Specific heat is an intensive property that depends only on the material type, while heat capacity is an extensive property that depends on both the material and the amount (mass) of substance.

What is the specific heat capacity of water?

Water has a specific heat capacity of 4,186 J/kg·°C, which is relatively high compared to most substances. This is why water is effective for thermal regulation and heat storage.

How do you calculate heat energy using the heat capacity formula?

Use the formula Q = c × m × ΔT, where Q is heat energy (J), c is specific heat (J/kg·°C), m is mass (kg), and ΔT is temperature change (°C).

Why does water have such a high heat capacity?

Water's high heat capacity is due to hydrogen bonding between molecules, which requires additional energy to break before temperature can increase. This makes water excellent for temperature regulation.

Is heat capacity an intensive or extensive property?

Heat capacity is an extensive property because it depends on the amount of material present. In contrast, specific heat capacity is an intensive property that only depends on the material type.

What units are used for heat capacity calculations?

Heat energy is measured in joules (J), mass in kilograms (kg), temperature in Celsius (°C), and specific heat in J/kg·°C. Heat capacity itself is measured in J/°C.