TLS Online TPP Program

#Question id: 20251


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.

#XL - P Chemistry
  1. – 90 kcal/mol 
  2. – 52 kcal/mol
  3. – 78 kcal/mol
  4. – 71.7 kcal/mol