JNW⁻¹kg⁻¹ is a unit that represents energy per unit mass. The J represents joules, the N represents newtons, and the W represents watts. The ⁻¹ in the unit denotes that it is in the denominator, which means it is divided by the unit in the numerator, kg⁻¹.
JNW⁻¹kg⁻¹ can be simplified by breaking it down into its component units. J represents joules, which can be simplified to kg⋅m²⋅s⁻². N represents newtons, which can be simplified to kg⋅m⋅s⁻². W represents watts, which can be simplified to kg⋅m²⋅s⁻³. This means that JNW⁻¹kg⁻¹ can be further simplified to kg⋅m⁻¹⋅s⁻².
Energy per unit mass is measured in joules per kilogram (J/kg) in the SI system. JNW⁻¹kg⁻¹ is another way of representing this unit, with J representing joules and kg⁻¹ representing per kilogram.
Some common examples of energy per unit mass include specific heat capacity (J/kg⋅K), specific energy (J/kg), and specific enthalpy (J/kg). These are all quantities that represent the amount of energy required or released per unit mass of a substance.
JNW⁻¹kg⁻¹ is used in scientific calculations to represent energy per unit mass. It can be used to calculate specific energy, specific heat capacity, and specific enthalpy, as well as other quantities that involve energy and mass. Scientists may also use this unit to convert between different units of energy per unit mass in the SI system.