Problem: Consider the combustion of liquid methanol, CH3OH(l):  CH3OH(l) + 3/2O2 (g) → CO2 (g) + 2H2O(l),   ΔH = - 726.5 kJIf the reaction were written to produce H2O(g) instead of H2O(l), would you expect the magnitude of ΔH to increase, decrease, or stay the same?  Explain.

Problem Details

Consider the combustion of liquid methanol, CH3OH(l):  

CH3OH(l) + 3/2O2 (g) → CO2 (g) + 2H2O(l),   ΔH = - 726.5 kJ

If the reaction were written to produce H2O(g) instead of H2O(l), would you expect the magnitude of ΔH to increase, decrease, or stay the same?  Explain.

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