The following thermochemical equation is for the reaction of nitrogen monoxide(g) with hydrogen(g) to form nitrogen(g) and water(). 2NO(g) + 2H2(g) N2(g) + 2H,O(1) AH=-752 kJ When 7.56 grams of...

Extracted text: The following thermochemical equation is for the reaction of nitrogen monoxide(g) with hydrogen(g) to form nitrogen(g) and water(). 2NO(g) + 2H2(g) N2(g) + 2H,O(1) AH=-752 kJ When 7.56 grams of nitrogen monoxide(g) react with excess hydrogen(g), ]kJ of energy are[ Hint: An amount of energy is expressed as a positive number. The sign of AH in the thermochemical equation indicates whether the energy is absorbed or evolved.