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. = kJ

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