The average rate of formation of H2 over the same time period is _____ M s-1.

Question

For the gas phase decomposition of hydrogen iodide at 700 K

2 HIH₂ + I₂

the average rate of disappearance of HI over the time period from t = 0 s to t = 2918 s is found to be 1.32×10^-4 M s^-1.

The average rate of formation of H₂ over the same time period is _____ M s^-1.

Answer 1

The extent of reaction is connected by all the stoichiometry of the reaction. 1 moles of H₂ is produced from every 2 moles of HI reacted. The rate of formation of H₂ must be half as fast.

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