The cheese is often used in cooking and can be fried until brown without melting, owing to its higher-than-normal melting point.
2.
T Ref and P Ref are normally the temperature and the pressure of the triple point, but the normal melting temperature at atmospheric pressure are also commonly used as reference point because the normal melting point is much easier accessible.
3.
A " non "-" physical " standard state is one whose properties are obtained by extrapolation from a physical state ( for example, a solid superheated above the normal melting point, or an ideal gas at a condition where the real gas is non-ideal ).