Under standard conditions ( 298 K and 1 atm ), which statement is true? Refer to the constants for thermodynamic properties under standard conditions. diamond converts to graphite spontaneously graphite converts to diamond spontaneously none of the above

Under standard conditions, diamond does indeed convert to graphite spontaneously. This happens because graphite is thermodynamically more stable than diamond at these conditions, making the conversion favorable. Thus, over long periods, diamonds may gradually transform into graphite, which is a less ordered and more stable state. Conversely, the transformation of graphite to diamond is not spontaneous under these conditions; it requires high pressure and temperature to achieve this change. So, if you were thinking about blinging up that old graphite pencil, it turns out you’d need a lot more than just fancy wishes to get diamonds!