In the reaction CS2(l) + 3O2(g) → CO2(g) + 2SO2(g) ΔH = −265 kcal

1.	In the reaction CS2(l) + 3O2(g) → CO2(g) + 2SO2(g) ΔH = −265 kcal The enthalpies of formation of CO2 and SO2 are both negative and are in the ratio 4 : 3. The enthalpy of formation of CS2 is +26 kcal/mol. Calculate the enthalpy of formation of SO2.
Answer» In the reaction $C S_{2} (l) + 3 O_{2} (g) \to C O_{2} (g) + 2 S O_{2} (g) Δ H = - 265 k c a l$ The enthalpies of formation of $C O_{2}$ and $S O_{2}$ are both negative and are in the ratio 4 : 3. The enthalpy of formation of $C S_{2}$ is $+ 26 k c a l / m o l$ . Calculate the enthalpy of formation of $S O_{2}$ .

In the reaction CS2(l) + 3O2(g) → CO2(g) + 2SO2(g) ΔH = −265 kcal The enthalpies of formation of CO2 and SO2 are both negative and are in the ratio 4 : 3. The enthalpy of formation of CS2 is +26 kcal/mol. Calculate the enthalpy of formation of SO2.

Answer»

In the reaction

$C S_{2} (l) + 3 O_{2} (g) \to C O_{2} (g) + 2 S O_{2} (g) Δ H = - 265 k c a l$

The enthalpies of formation of $C O_{2}$ and $S O_{2}$ are both negative and are in the ratio 4 : 3. The enthalpy of formation of $C S_{2}$ is $+ 26 k c a l / m o l$ . Calculate the enthalpy of formation of $S O_{2}$ .

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In the reaction CS2(l) + 3O2(g) → CO2(g) + 2SO2(g) ΔH = −265 kcal The enthalpies of formation of CO2 and SO2 are both negative and are in the ratio 4 : 3. The enthalpy of formation of CS2 is +26 kcal/mol. Calculate the enthalpy of formation of SO2.

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