Anonymous asked in Science & MathematicsChemistry · 1 month ago

chemistry heat absorption?

Calculate the amount of heat absorbed or released when 78 g of acetylene (C2H2) reacts with excess hydrogen gas to form ethane (C2H6).

MW C2H2 = 26.0 g/mol, MW C2H6 = 30.1 g/mol∆H°f(ethane) = –85 kJ/mol; ∆H°f(acetylene) = +227 kJ/mol

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