In Terms of the Enthalpy of Formation, Which of the Following

question 16

Multiple Choice

In terms of the enthalpy of formation, which of the following compounds is most stable relative to its elements under standard conditions?

• A) PbBr₂(s),\(\Delta\)H \({ } _ { f } ^ { \circ } \mathrm { }\)= -277.4 kJ/mol
• B) O₃(g), \(\Delta\)H \({ } _ { f } ^ { \circ } \mathrm { }\)= +142.3 kJ/mol
• C) SO₂(g), \(\Delta\)H \({ } _ { f } ^ { \circ } \mathrm { }\)= -269.9 kJ/mol
• D) H₂Se(g), \(\Delta\)H \({ } _ { f } ^ { \circ } \mathrm { }\)= +29.7 kJ/mol
• E) ICl(g), \(\Delta\)H \({ } _ { f } ^ { \circ } \mathrm { }\)= +17.8 kJ/mol

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