The statements given describe the spontaneity of the reaction at different temperatures.
Which, if any, of the following processes is spontaneous under the specified conditions?
A. H2O(l) → H2O(s) at 25°C
B. CO2(s) → CO2(g) at 0 °C
C. 2 H2O(g) → 2H2(g) + O2(g)
D. C(graphite) → C(diamond) at 25°C and 1 atm pressure
E. None of the above is spontaneous
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