This quantity is conserved in an ideal Hampson–Linde cycle, which is used in the liquefaction of gases. At a constant value of this quantity, hydrogen, helium, and neon warm (-5[1])upon expansion because they have very small inversion temperatures. The differential for this quantity is equal to “T dS + V dp” when particle number is held constant. (10[1])Throttling processes (10[1]-5[1])conserve this quantity via the Joule–Thomson effect. (10[1])In the thermodynamic square, (-5[1])this quantity is the only non-energy potential. Along with energy, the Born–Haber cycle calculates a “lattice” version of (10[1])this quantity from (10[1])Hess’s (10[1])law. This quantity, equal to the sum of the internal energy plus pressure times volume, is negative for exothermic processes. For 10 points, name this state function denoted H. (10[1])■END■ (10[2])