question_answer

The densities of graphite and diamond at 298 K  are 2.25 and 3.31 g cm?3,  respectively. If the standard free energy difference \[(\Delta {{G}^{o}})\] is equal to 1895 J \[mo{{l}^{-1}}\], the pressure at which graphite will be transformed diamond at 298 K is [CBSE PMT 2003]

A)                 \[9.92\times {{10}^{5}}Pa\]        

B)                 \[9.92\times {{10}^{8}}Pa\]

C)                 \[9.92\times {{10}^{7}}Pa\]        

D)                 \[9.92\times {{10}^{6}}Pa\]