When ethyne is passed through a red hot tube, then formation of benzen – InterviewSolution

1.	When ethyne is passed through a red hot tube, then formation of benzene takes place: ΔH∘f(C2H2)(g)=230 kJ mol−1 H∘f(C6H6)(g)=85 kJ mol−1 Calculate the standard heat of trimerisation of ethyne to benzene. 3C2H2(g)→C6H6(g)
Answer» When ethyne is passed through a red hot tube, then formation of benzene takes place: $Δ H_{f (C_{2} H_{2}) (g)}^{\circ} = 230 k J m o l^{- 1}$ $H_{f (C_{6} H_{6}) (g)}^{\circ} = 85 k J m o l^{- 1}$ Calculate the standard heat of trimerisation of ethyne to benzene. $3 C_{2} H_{2} (g) \to C_{6} H_{6} (g)$

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