# Problem: Calculate ΔG° for the reaction using ΔG°f value: H2(g) + I2(s) ⟶ 2HI(g)

###### FREE Expert Solution

H2(g) + I2(s) ⟶ 2HI(g)

We can use the following equation to solve for ΔG˚rxn:

The values for ΔG˚f can be looked up in textbooks or online:

ΔG˚f, H2(g)  = 0 kJ/mol

ΔG˚f, I2(s) = 0 kJ/mol

ΔG˚f, HI(g) = 1.72 kJ/mol

Note that we need to multiply each ΔG˚f by the stoichiometric coefficient since ΔG˚f is in kJ/mol.

90% (480 ratings) ###### Problem Details

Calculate ΔG° for the reaction using ΔG°f value: H2(g) + I2(s) ⟶ 2HI(g)

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.