What is the specific heat of helium?

The specific heat of helium is 5.193 kJ/kg Kelvin, according to the Physics Classroom. The specific heat value measures the amount of heat needed to change the temperature of a unit of mass.

The Engineering Toolbox states that heat capacity is an extensive property, which means it is determined by the extent or size of the physical system under investigation. According to the site, the heat capacity of most systems is not a constant. Instead, the variables of the thermodynamic system under study determine the heat capacity value. Temperature itself dictates the measurement as well as the volume and pressure of the system, as explained by the Physics Classroom.