# Baonza equation of state

Baonza, *et al* formulated an equation based on a linear bulk modulus called the **Baonza equation of state**^{[1]}. It has a simple analytical form but also gives similar accuracy to the Rose-Vinet (Universal) equation of state. The equation of state is:

where is the isothermal bulk modulus, is the pressure derivative of the bulk modulus and relates the bulk modulus and its pressure derivative via: