Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard enthalpy of formation of styrene at 25°C.(Given: ΔH°f[CO2(g)] = –393.5 kJ/mol, ΔH°f[H2O(l)] = –285.8 kJ/mol, ΔH°f[H2O(g)] = –241.8 kJ/mol)(A) 323.8 kJ/mol (B) ~4249 kJ/mol(C) ~8730 kJ/mol(D) ~636.7 kJ/mol(E) 147.8 kJ/mol

Styrene, C8H8, is one of the substances used in the production of synt

1.	Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25°C, 42.62 kJ are released per gram of styrene. Find the standard enthalpy of formation of styrene at 25°C.(Given: ΔH°f[CO2(g)] = –393.5 kJ/mol, ΔH°f[H2O(l)] = –285.8 kJ/mol, ΔH°f[H2O(g)] = –241.8 kJ/mol)(A) 323.8 kJ/mol (B) ~4249 kJ/mol(C) ~8730 kJ/mol(D) ~636.7 kJ/mol(E) 147.8 kJ/mol
Answer» (E) 147.8 kJ/mol

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