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Grade: 11
        
enthalpy of combustion of diamond and graphite are -395 and -393 kj .find the heat of formation of diamond from graphite
10 months ago

Answers : (1)

Arun
22540 Points
							
Aim equation: C (graphite) → C (diamond)
Given;
Graphite C (graphite) + O2(g) → CO2(g)             
= -393  (kJ/mol)  ----1
Diamond C (diamond) + O2(g) → CO2(g)            
= -395  (kJ/mol)  ----2
Subtract 2 from 1

C (graphite) → C (diamond)                                ∆H = + 2(kJ/mol)

10 months ago
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