When 4.7 mol of a diatomic gas is heated at a constant pressure of 3.6 atm, its temperature increases from 243.8 K to 308.3 K. Given that the molar hear capacity of the diatomic gas at constant pressure is 29.4 J K- mol ], determine AU. Express your answer in Joules to the nearest whole number (XXXX). D Question 5 1.75 pts The standard enthalpy of sublimation of a substance is 83.8 kJ mol" at 25" C. Calculate the standard enthalpy of fusion of this substance if the standard enthalpy of vaporization is 45.9 kJ mol" at this temperature. Express your answer in KJ mol - to the first decimal place (XX.X)