Which statement is not correct about the industrial preparation of ethanol by the hydration of ethene at 300°C?
C$_2$H$_4$(g) + H$_2$O(g) ⇌ C$_2$H$_5$OH(g) ΔH = −46 kJ mol$^{-1}$
1 )
The reaction is catalysed by an acid.
2 )
The higher the pressure, the higher the equilibrium yield of ethanol.
The higher the temperature, the higher the equilibrium yield of ethanol.
4 )
A low equilibrium yield of ethanol is acceptable because unreacted ethene is recycled.
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