At 1000 K water vapour at 1 atm. has been found to be dissociated into `H_2` and `O_2` to the extent of `3 xx 10^(-6) %`

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Q 2668701605.     At 1000 K water vapour at 1 atm. has been found to be dissociated into `H_2` and `O_2` to the extent of `3 xx 10^(-6) %`
Calculate the free energy decrease of the system, assuming ideal behaviour.
A

`-Delta G = 90,060` cal

B

`-Delta G= 20 ` cal

C

`-Delta G= 480` cal

D

`-Delta G=-45760` cal

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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