Question: Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water:

Dimethyl ether, a useful organic solvent, is prepared in two steps.

Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon dioxide and hydrogen react to form methanol and water: CO2(g)+3H2(g)CH3OH(I)+H2O(I)H=131.kJ In the second step, methanol reacts to form dimethyl ether and water: 2CH3OH(I)CH3OCH3(g)+H2O(I)H=8.kJ Calculate the net change in enthalpy for the formation of one mole of dimethyl ether from carbon dioxide and hydrogen from these reactions. Round your answer to the nearest kJ

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