THERMODYNAMICS: Use the given standard enthalpies of formation to calculate the AH° (in kJ) for the hypothetical reaction: (Round off the final answer to ONE decimal place. Do not include the unit.)...

Extracted text: THERMODYNAMICS: Use the given standard enthalpies of formation to calculate the AH° (in kJ) for the hypothetical reaction: (Round off the final answer to ONE decimal place. Do not include the unit.) 2X2D (g) + 3M2 (g) → 2X2M (I) + 2DM2 (g) %3D AH°† for X2D (g) = -20.7 kJ/mol AH°F for DM2 (g) = -295.1 kJ/mol AH°F for X2M (I) = -286.1 kJ/mol AH°F for M2 (g) = 0 kJ/mol