When the temperature becomes sufficiently high, water vapor starts to decompose into hydrogen gas and oxygen...

When the temperature becomes sufficiently high, water vapor starts to decompose into hydrogen gas and oxygen gas according to 2H2O(g) A 2H2(g) + O2(g) Using the following data, and assuming that 6CP is constant for this reaction and has an effective value of Cp = 18.88 J mol–1 K–1 over the temperature range in question,

calculate: (a) the value of the decomposition constant at 1000 K

(b) the percent decomposition of water vapor at 1000 K and one bar total pressure.

H2(g) O2(g) H2O(g)

hf (298.15) (kJ mol–1) 0.00 0.00 –241.82

S298.15 o (J K–1 mol–1) 130.684 205.138 188.825

Expert Solution

queen_honey_blossom answered 1 year ago

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