Chemical Thermodynamics Question 153
Question: 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]
Options:
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 $
Show Answer
Answer:
Correct Answer: B
Solution:
Only high pressure favours the conversion.
