Specific heat of water: Figure 1

Figure 1. Water has a specific heat capacity of 4.184 J/g°C, meaning that it requires 4.184 J of energy (1 calorie) to heat a gram by one degree. [1] Specific heat capacity is the amount of heat needed to raise one gram of a material by one degree celsius (o C). [2] It is expressed in Joules per gram per degree celsius (J g × o C), and is given by the equation: [3] c = Q m Δ T where c is the specific heat , Q is the heat needed, m is the mass and Δ T is the change in temperature of the ... The term specific heat may also refer to the ratio between the specific heat capacities of a substance at a given temperature and of a reference substance at a reference temperature, such as water at 15 °C; [5] much in the fashion of specific gravity. What is the Specific Heat of Water ? The specific heat capacity (cp) of water is 4182 J/kg°C at 20 °C (room temperature). The water heat capacity calculator can be used to find the specific heat capacity of water (cp of water) at different temperatures. Note: Use dot "." as decimal separator. Specific heat of water is 4.184 J/g°C. Full data table with Cp and Cv values across temperatures. Includes formula, definition, and why it matters.