Practice question
Question
The heat released when 12 g of carbon is burnt in excess oxygen is: (Δ Hc = -393.5 kJ/mol, molar mass of C = 12 g/mol)
Explanation
Moles of C = 12 / 12 = 1 mol. Heat released = 1 × 393.5 = 393.5 kJ.
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