Objective knowledge check questions a chemist fills a reaction vessel with 4.64 atm nitrogen (n) gas, 6.79 atm hydrogen (h) gas, and 8.54 stm ammonia (nh) gas at a temperature of 25.0°c under these conditions, calculate the reaction free energy ag for the following chemical reaction n, (b) + 3h2(g) + 2nh, (8) use the thermodynamic information in the aleks data tab. round your answer to the nearest kilojoule, x 5 ? dont know