6.0 Chemical Equilibria

irreversible reaction ->

• cannot occur in both direction
• occur in both direction

NaOH (aq) + HCl (aq) ??? NaCl (aq) + H2O (l)

• irreversible reaction
• reversible reaction

2H2O2 (aq) ??? 2H2O (l) + O2 (g)

• irreversible reaction
• reversible reaction

Zn (s) + H2SO4 (aq) ??? ZnSO4 (aq) + H2 (g)

• irreversible reaction
• reversible reaction

C2H5OH (l) + 3O2 (g) ??? 2CO2 (g) + 3H2O (l)

• irreversible reaction
• reversible reaction

CaCO3 (s) heat ??? CaO (s) + CO2 (g) in open container.

• irreversible reaction
• reversible reaction

In Contact process

• irreversible reaction
• reversible reaction

In Ostwald Process

• irreversible reaction
• reversible reaction

haber process

• reversible reaction
• irreversible reaction

2NO (g) + O2 (g) -> 2NO2 (g) 3NO2 (g) + H2O (l) → 2HNO3 (aq) + NO (g)

• Ostwald Process
• Contact process