Chemical Thermodynamics Question 175

Question: The heat of transition (ΔHt) of graphite into diamond would be, where C(graphite)+O2(g)CO2(g);ΔH=x,kJ

C(diamond),+C2(g)CO2(g);ΔH=y,kJ [Pb. PET 1985]

Options:

A) (x+y),kJ,mol1

B) (xy),kJ,mol1

C) (yx),kJ,mol1

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

Graphite diamond ΔHt=(xy),kJ,mol1 .



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