Hydrogen gas and iodine vapor react to produce hydrogen iodide gas: Calculate the free-energy change G for

Hydrogen gas and iodine vapor react to produce hydrogen iodide gas:

Calculate the free-energy change ˆ†G for the following two conditions, at 25oC. Which one is closer to equilibrium? Explain.
a. The partial pressures of H2(g), I2(g), and HI(g) are each 1/3 atm.
b. The partial pressures of H2(g) and I2(g) are each 1/3 atm; the partial pressure of HI(g) is 1/90 atm.

Transcribed Image Text:

H2(g) 2(8)2HI(g)