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) H° = 146.9 kJ/mol
S(s) + O2(g) SO2(g) H° = -296.4 kJ/mol
A) -1036.1 kJ/mol
B) -742.3 kJ/mol
C) -149.5 kJ/mol
D) 443.3 kJ/mol
E) 742.3 kJ/mol
Correct Answer:
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