M5/8 Revision Questions

How will you increase the production of ammonia in the reaction,

3H₂ (g) + N₂ (g) ⟺ 2NH₃(g)

• Increase pressure

• Decrease pressure

How will you increase the production of methanol from the reaction,

CO (g) + 2H₂ (g) ⟺ CH₃OH(g)

• Increase pressure

• Decrease pressure

• Increase the concentration of H2

• Increase the concentration of CO

• Increase the concentration of Methanol

• Add HCl

• Add water

• Add Pb(NO₃ )₂ to precipitate PbCl₂

• Increase pressure

How will you increase the solubility of lead chloride, PbCl₂?

PbCl₂(s) ⟺ Pb²⁺ (aq) + 2Cl^-1 (aq)

• Add water

• Add silver nitrate, AgNO₃ to precipitate AgCl

• Increase pressure

• Add HCl

• Increase the concentration of H2

• Increase the concentration of N2

• Increase the concentration of NH3

• NH3 increased

• H2 decreased

• H2 increased

• NH3 decreased

In the reaction: 3H₂ (g) + N₂ (g) ⟺ 2NH₃(g), ΔHΔH = -97KJ (exothermic),

What will happen after catalysts are added?

• NH3 increased

• H2 increased

• N2 increased

• NH3 decreased

In the reaction: 3H₂ (g) + N₂ (g) ⟺ 2NH₃(g), ΔH = -97KJ (exothermic),

What will happen after an increase in temperature?

• NH3 decreased

• N2 increased

• H2 increased

• NH3 increased

In the reaction: 2NO₂ (g) ⟺ 2NO(g) + O₂(g), ΔH= +62KJ (endothermic),

What will happen after NO is added?

• O₂ decreased

• O₂ increased

• NO₂ increased

• NO₂ decreased