关键词: equation of state;general equation;cubic equation;quartic equation

Abstract: A new general equation of state is presented, which can be used to express not only common
cubic equations of state, but also quartic equations of state and so on. Main advantage of
the new equation over the previous general equations is that it is in simple form, and is
easy to manipulate mathematically.

Key words: equation of state, general equation, cubic equation, quartic equation