MCQ
${C_{{\rm({daimond})}}}$ $+$ ${O_2} \to C{O_2};$ $\Delta H = - 395.3\,kJ/mole$
${C_({graphite)}} + {O_2} \to C{O_2};\,\Delta H = - 393.4\,kJ/mole$
${C_({graphite})} \to {C_{{\rm({diamond})}}};\,\Delta H = $
- A$-3.8$
- B$-1.9$
- C$3.8$
- ✓$1.9$
${C_({graphite)}} + {O_2} \to C{O_2};\,\Delta H = - 393.4\,kJ/mole$
${C_({graphite})} \to {C_{{\rm({diamond})}}};\,\Delta H = $
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