Making ethanol by the hydration of ethene
2 marks · EasyThe hydration of ethene is carried out at high temperature and pressure in the presence of a catalyst.
(a)[1 mark]
State the temperature (in °C) commonly used in this process.
(b)[1 mark]
Give the range of pressures (in atmospheres) that is typically used.
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(a) 300°C
(b) 60–70 atmospheres atm
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Marking points
B1 (a) · 1 mark · States 300°C for temperature (accept 295–305°C for 1 mark).
B1 (b) · 1 mark · States pressure range as 60–70 atmospheres.
Worked solution
a) The typical temperature used is 300°C.
b) The typical pressure range used is 60–70 atmospheres.