Chemistry - Thermochemistry Question with Solution | TestHub

Match the reactions given in List-I with corresponding properties of reaction or corresponding thermochemical quantity in List-II.

List-I List-II.

(P) C(graphite) $+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})⟶\mathrm{CO}(\mathrm{g})$ (1) $\Delta \mathrm{H}=+\mathrm{ve}$

(Q)${\mathrm{H}}_2(\mathrm{g})+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})⟶{\mathrm{H}}_2\mathrm{O}(\mathrm{l})$ (2) $\Delta {\mathrm{H}}_{\text{formation }}$

(R) C(diamond) $+{\mathrm{O}}_2(\mathrm{g})⟶{\mathrm{CO}}_2(\mathrm{g})$ (3) $\Delta {\mathrm{H}}_{\text{combustion }}$

(S)${\mathrm{C}}_2{\mathrm{H}}_4(\mathrm{g})⟶2\mathrm{C}(\mathrm{g})+4\mathrm{H}(\mathrm{g})$ (4) $\Delta {\mathrm{H}}_{\text{atomisation }}$

Codes :

P Q R S