in INDUSTRY

Question 1

What does harber process produce?

Answer 1

NH3

Question 2

Delta H for harber process is = -ve
According to Le Chatelier’s Principle, why temperature must be lowered (slower rate)?

Answer 2

Equilibrium will shift to the right to release more heat to increase the T. Resulting in yield of NH3 to increase.

Question 3

In Harber Process , according to Le Chatelier’s Principle, why pressure must be increased?

Answer 3

Equilibrium shift to the right, Higher pressured will make equiposition shift from higher mole to lower mole side.
- yield of NH3 increased

Question 4

What is the P used in actual Harber Process? and why?

Answer 4

200 atm
reasonable cost and NH3

Question 5

What is the temperature used in actual Harber Process?

Answer 5

450°C
- reasonable rate and yield of NH3

Question 6

What is the catalyst and promoter used in Harber Process?

Answer 6

catalyst -Iron, Fe to speed to achieve equilibrium
promoter - K2O, Al2O3
to enhance the efficiency of catalyst

Question 7

What is produce in Contact Process?

Answer 7

to produce H2SO4

Question 8

Given delta H in Contact Process is = -ve
According to Le Chatelier’s Principle, why temperature must be lowered ( slower rate )?

Answer 8

Equilibrium shift to the right to release more heat to increase T
- yield of SO3 increase

Question 9

In Contact Process, According to Le Chatelier’s Principle, why pressure must be higher?

Answer 9

Equilibrium will shift to the right ( from higher mole to lower mole side )
SO3 yield increase

Question 10

in actual Contact Process , what is the P used? and why?

Answer 10

1 atm
reasonable cost and SO3

Question 11

In actual Contact Process, what is T used and why?

Answer 11

450°C
reasonable rate and SO3

Question 12

What is catalyst used in actual Contact Process?

Answer 12

Vanadium (V) oxide,
V2O5