8. Calcium oxide reacts with carbon as shown. Determine the enthalpy change (Q) if $27.5 g$ of graphite (carbon) reacts with excess calcium oxide? (4 marks) $CaO (s) + 3 C (s) + 462.3 kJ ? CaC_{2} (s) + CO (g)$

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8. Calcium oxide reacts with carbon as shown. Determine the enthalpy change (Q) if

27.5 g

of graphite (carbon) reacts with excess calcium oxide? (4 marks)

CaO (s) + 3 C (s) + 462.3 kJ ? CaC_{2} (s) + CO (g)

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(Solved): 8. Calcium oxide reacts with carbon as shown. Determine the enthalpy change (Q) if 27.5g of graph ...