Select the correct statement(s) from the following

Options

A. Graphit is thermodynamically more unstable form of carbon
B. Graphite can be converted into diamond
C. Graphite is used as a moderator in nuclear reactors
D. Graphite is less reactive than diamond

Answer

B, C

Explanation

(BC ) The heat of combustion of graphite-94.052 kcal `//` mole and that of diamond is 94.505 kcal `//` mole. However, it can be converted into diamond at `16000^(@)C` by a pressure of 5,000 to 60,000 atm