Topic 5 - Dynamic Equilibrium

Question 1

What gases are the reactants in the Haber process

Answer 1

Nitrogen and hydrogen

Question 2

What gas is the product of the Haber process

Answer 2

Ammonia

Question 3

Define the Haber process

Answer 3

a reversible reaction between nitrogen and hydrogen to form ammonia

Question 4

What does high pressure do to the rate of equilibrium

Answer 4

High pressure favour the side with fewer molecules, therefore it will favour the forward reaction in the Haber process. Pressure is set higher to increase rate of attainment of yield

Question 5

Explain temperature used in the Haber process

Answer 5

High temperatures favour the endothermic reaction therefore it will not favour the forward reaction. To increase yield, lower temperatures are used. However, low temperature means a low rate of reaction so a compromise temperautre is used.

Question 6

What temperature and pressure are used in the haber process

Answer 6

450 C and 200 atmospheres

Question 7

What are the 3 main elements used in fertilisers

Answer 7

nitrogen, phosphorous and potassium

plants use these nutrients to grow and undergo life processes.

Question 8

How is ammonia used to process a nitrogen-containing compound

Answer 8

ammonium and nitric acids –> ammonium nitrate (a fertiliser)

Question 9

ammmonium + nitric acid chemical formula

Answer 9

NH3 (aq) + HNO3(aq) –> NH4NO3 (aq)