Problem 4 The following data are known for the following reactions at standard conditions: (1) H2(g) + O2(g) OH(g) AHR = 38.95 kJ/mol (2) H2(g) + O2(g) H2O(g) AHR = -241.814 kJ/mol (3) H2(g) 2H(g) AHR = 435.994 kJ/mol (4) O2(g) +20(g) AHR = 498.34 kJ/mol. - Assuming ideal gas behavior, calculate AHR and AUR for the following reactions. a) OH(g) - H(g) + O(g) b) H2O(g) 2H(g) + O(g) c) H2O(g) H(g) + OH(g)