Chemical Thermodynamics Question 216

Question: In the reaction for the transition of carbon in the diamond form to carbon in the graphite form, $ \Delta H $ is $ -453.5,cal $ . This points out that [BHU 1981; KCET 1986, 89]

Options:

A) Graphite is chemically different from diamond

B) Graphite is as stable as diamond

C) Graphite is more stable than diamond

D) Diamond is more stable than graphite

Show Answer

Answer:

Correct Answer: C

Solution:

$ C_{D}\to C_{G},,,\Delta H=-453.5cal. $ i.e. energy of $ C_{G} $ is less and thus more stable.



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