the rotation constant for Br^79 Br^81 is o.08091 cm^-1, the harmonic frequency is 323.2 cm^-1 and the anharmonicity constant is 1.07 cm^-1. Allso, two excited triplet states are found 13814 and 15891 cm^-1 above the ground state. calculate the Helmholtz energy for this molecule at room tempreature and 1 atm.