Consider the synthesis of Hydrogen Bromide gas

Consider the popthacia of bydrogen gu boomide gas t Brz g) Use the following data to calculate A Hrxn for this poces NH3(G) tHBegl- NHy Brs) AH=-188.32k1 AH=-92.22k] Ng igH 47,9) +Brl)$ I 2. NHyBrs AH=-541.661 Ealtalpy it important for 'anscwerquestionin part la? is a otate funtion what does this mean and ohy is