6.1 Initially, 4 moles H2(g) and 4 moles I2(g) are allowed to react in a sealed
2 dm3 flask according to the following balanced equation:
H2(g) + I2(g) ⇌ 2HI(g) ΔH < 0
The graph below shows the concentrations of H2(g) and HI(g) versus time during the reaction.
