THERMODYNAMICS: Given the following hypothetical thermochemical equations: 2QJ3 (g) + 3Q2X (g) → 4Q2 (g) + 3J2X (I) AH = -1,004.9 kJ 4QJ3 (g) + 3X2 (g) → 2Q2 (g) + 6J2X (I) AH = -1,554 kJ Calculate...

Extracted text: THERMODYNAMICS: Given the following hypothetical thermochemical equations: 2QJ3 (g) + 3Q2X (g) → 4Q2 (g) + 3J2X (I) AH = -1,004.9 kJ 4QJ3 (g) + 3X2 (g) → 2Q2 (g) + 6J2X (I) AH = -1,554 kJ Calculate the value of AH (in kJ) for the reaction: Q2 (g) + ½ X2 (g) → Q2X (g) (Round off the final answer to ONE decimal place. Do not include unit.)