🧪 TheChemSolverUSNCO / General Chemistry
ThermodynamicsMCQ

1/2 H2(g) + 1/2 I2(s) -> HI(g) ΔH = 26 kJ/molrxn 1/2 H2(g) + 1/2 I2(g) -> HI(g) ΔH = -5.0 kJ/molrxn Thermodynamics Chemistry Question

Question

1/2 H2(g) + 1/2 I2(s) → HI(g) ΔH = 26 kJ/molrxn
1/2 H2(g) + 1/2 I2(g) → HI(g) ΔH = -5.0 kJ/molrxn

Based on the information above, what is the enthalpy change for the sublimation of iodine, represented below?

I2(s) → I2(g)

A.

15 kJ/molrxn

B.

21 kJ/molrxn

C.

31 kJ/molrxn

D.

42 kJ/molrxn

E.

62 kJ/molrxn

✓ Correct
💬
Still have doubts about this question?
Practice more questions like this, completely free.

Practice USNCO / General Chemistry questions like this — free

4,000+ questions across AP Chemistry, USNCO, and IChO — all free, no signup required.