Which of the following is not a case of chemical equilibrium?
CaCO3(s) → CaO(s) + CO2
2 SO2 (g) + O2 (g) → 2 SO3(g)
NH4Cl(s) → NH4Cl(aq)
N2O4(g) → 2NO2(g)
NH4Cl(aq) is aqueous solution of NH4Cl(s).
What type of reactions are represented by the following equations ?
(i) CaCO3⟶CaO+CO2
(ii) CaO+H2O⟶Ca(OH)2
(iii) 2FeSO4⟶Fe2O3 + SO2 + SO3
(iv) NH4Cl⟶NH3 + HCl
(v) 2Ca + O2⟶2CaO
For the chemical equilibrium, CaCO3(s) ⇌ CaO(s) + CO2(g),ΔH.,can be determined from which one of the following plots