Solid `Ca(HCO_(3))_(2)` decomposes as `Ca(HCO_(3))_(2)(s)hArrCaCO_(3)(s)+CO_(2)(g)+H_(2)O(g)` If the total pressure is `0.2` bar at `420 K,` what is the standard free energy change for the given reaction `(Delta_(r)G^(@))` ?
A
`840 kJ//mol`
B
`3.86 kJ//mol`
C
`6.98 kJ//mol`
D
`16.083 kJ//mol`
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The correct Answer is:
D
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