Densities of diamond and graphite are and respectively. For the transformation , . Which of the following conditions strictly favour the formation of diamond?

Question

Densities of diamond and graphite are $3.5	ext{ g/mL}$ and $2.3	ext{ g/mL}$ respectively. For the transformation $C(	ext{diamond}) ightleftharpoons C(	ext{graphite})$, $\Delta_r H = -1.9	ext{ kJ/mol}$. Which of the following conditions strictly favour the formation of diamond?

Prashant Kotian · Accepted Answer

Correct answer: C. Diamond formation is the reverse reaction (endothermic, ), favoured by high temperature. Diamond has higher density (lower volume). By Le-Chatelier's principle, high pressure shifts equilibrium to the state with lesser volume (diamond). Thus, High P, High T.

💡 Solution & Explanation

Practice 22,000+ questions like this