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Introduction to Alkynes

The heat of c...

Question

The heat of combustion of carbon (graphite) is not equal to that of carbon(diamond).If true enter 1 else o
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Solution

The correct option is A 1
The standard molar enthalpy of combustion of carbon (graphite) is -393.5 kJ/mol. The standard molar enthalpy of combustion of carbon (diamond) is -395.4 kJ/mol. The difference relates to the heat of transition. Hence, the heat of combustion of carbon (graphite) is not equal to that of carbon(diamond).

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Q. The enthalpy of combustion of diamond and enthalpy of combustion of graphite has the same value.If true enter 1 else 0.

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Q. The heat of combustion are usually exothermic.

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C (s) (g r a p h i t e) ⟶ C (g); Δ H = 716.7 k J

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