MCQ
At room temperature solid paraffin is
- A${C_3}{H_8}$
- B${C_8}{H_{18}}$
- C${C_4}{H_{10}}$
- ✓${C_{20}}{H_{42}}$
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$\Delta H_{f({C_2}{H_2})(g)}^o\, = \,230\,kJ\,mo{l^{ - 1}}$
$\Delta H_{f({C_6}{H_6})(g)}^o\, = \,85\,kJ\,mo{l^{ - 1}}$
Calculate the standard heat of trimerisation of ethyne to benzene.
$3{C_2}{H_2}(g) \to {C_6}{H_6}(g)$
......$kJ\, mol^{-1}$