Hi guys, is this right? 1. The problem statement, all variables and given/known data A mole of nitrogen is heated at constant external pressure of 1 atm from 25° C to 100° C. The heat capacity of nitrogen is 29.1 J/mol·K. Calculate ΔSsurr 2. The attempt at a solution delta_S=Q/T = -1*29.1*75/373=-5.85 J/K (heat transferred to the system divided by T_surr which we assume to be equal to T_final) The solution in my lecture notes says -22 J/K, I can't see where that came from.