Contact Process

Created by: yuvrajsingh
Created on: 06-04-16 18:39

Explain the 3 stages of the contact process

1. make sulfur dioxide by burning sulfur in air (S + O2 = SO2) 2. Sulfur dioxide is oxidised using a catalyst (2SO2 + O2 =2SO3) 3. Then the sulfur trioxide that is formed is dissolved in water to make sulfuric acid (SO3 + H2O =H2SO4)

1 of 5

Which step of the contact process is reversible?

step 2 ( oxidising SO2)

2 of 5

What temperature is used in step 2 of the contact process and why?

450 degrees C As if the temperature is to low you will get a high yield but a low reaction rate. So this is a compromise.

3 of 5

How much pressure is used in Step 2?

1 atmosphere ( as pressure is expensive and not really needed)

4 of 5

What catalyst is used in the contact process and why?

Vanadium pentoxide to speed up the rate of reaction.

5 of 5

Other cards in this set

Card 2

Front

Which step of the contact process is reversible?

Back

step 2 ( oxidising SO2)

Card 3

Front

What temperature is used in step 2 of the contact process and why?

Back

Card 4

Front

How much pressure is used in Step 2?

Back

Card 5

Front

What catalyst is used in the contact process and why?

Back

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Contact Process