Densities of diamond and graphite are `(3.5g)/(mL)` and `(2.3g)/(mL)`.
`Delta_(r)H=-1.9(kJ)/("mole")`
Favourable conditions for formation of diamond are:

Options

A. high pressure and low temperature
B. low pressure ad high temperature
C. high pressure and high temperature
D. low pressure and low temperature

Answer

C

Explanation

High temperature will favour backward reaction as reactio is exothermic while on increasing pressure reaction will shift in directionn higher density.