1.

At 1000 K water vapour at 1 atm, has been found to be dissociated into H_2 and O_2 to the extent of 3xx10^(-5)%. Calculate the free energy decrease of the system, assuming ideal behaviour.

Answer»

`-DELTAG=90,060` CAL
`-DeltaG=20` cal
`-DeltaG=480` cal
`-DeltaG=-45760` cal

Solution :`{:(H_2O(g),hArr,H_2+,1/2O_2),(1-alpha," " ,alpha,alpha//2):}`
`K_P=alpha/(1-alpha)((alpha/2P)/(1+alpha/2))^(1//2)=11.62xx10^(-)11("atm")^(1//2)IMPLIES DeltaG^(@)= -RT "In" K_P`= -45.76 kcal


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