A-LevelChemistryChemical energetics9701/12 · May/June 2010 · Q51 Mark
Given the following enthalpy changes, I2(g) + 3Cl2(g) → 2ICl3(s) ΔΗ° = −214 kJ mol⁻¹ I2(s) → I2(g) ∆H = +38 kJ mol⁻¹ What is the standard enthalpy change of formation of iodine trichloride, ICl3(s)?
A+176 kJ mol⁻¹
B−88 kJ mol⁻¹
C−176 kJ mol⁻¹
D−214 kJ mol⁻¹
✓ Correct answer
B: −88 kJ mol⁻¹
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