During volcanic eruptions, hydrogen sulfide gas is given off and oxidized by air according to the following chemical equation:
2H2S(g) + 3O2(g) -> 2SO2(g) + 2H2O(g)
Calculate the standard enthalpy change for the above reaction given:
3S(s) + 2H2O(g) -> 2H2S(g) + SO2(g) ΔH° = 146.9 kJ/mol
S(s) + O2(g) -> SO2(g) ΔH° = –296.4 kJ/mol
Select one:
a. 443.3 kJ/mol
b. –1036.1 kJ/mol
c. –149.5 kJ/mol
d. –742.3 kJ/mol
e. 742.3 kJ/mol