To xprsolutn 1. The ground level of Cl is 2P3/2 and a 2P1/2 level lies 881 cm–1 above it. Calculate the electronic contribution to the heat capacity of Cl atoms at (a) 500 K and (b) 900 K. 2. Calculate the equilibrium constant of the reaction I2(g)  2 I(g) at 1000 K from the following data for I2: = 214.36 cm–1, B = 0.0373 cm–1, De = 1.5422 eV. The ground state of the I atoms is 2P3/2, implying four fold degeneracy.