Endpoint of a liquid-gas coexistence curve where the two phases become indistinguishable. Above T_c the substance is a supercritical fluid. Accompanied by universal critical exponents (Ising universality class for simple fluids).
Endpoint of a liquid-gas coexistence curve where the two phases become indistinguishable. Above T_c the substance is a supercritical fluid. Accompanied by universal critical exponents (Ising universality class for simple fluids).