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| 1. |
Write the conditions to maximise the yield of H_2SO_4 in contact process. |
| Answer» Solution :The IMPORTANT STEP in the MANUFACTURE of`H_2SO_4` is the oxidation of `SO_2` to `SO_(3).2SO_2+O_2iff2SO_3Deltah=-196.6kj//mol` According to Le-Chatelier’s PRINCIPLE, low temperaturei and high pressure favour the oxidation of `SO_2` to `SO_3`. But at low temperature reaction rate will be low. So an optimum temperature of 720K is used in CONTACT process. Pressure used is about 2 bar and is used as. catalyst for the reaction. | |