Calculate the enthalpy change of vaporisation of benzene if $13 \ g$ of benzene vaporised by supplying $5.1 \ kJ$ of heat.
- A$43.5 \ kJ \ mol^{-1}$
- B$35.3 \ kJ \ mol^{-1}$
- C$30.6 \ kJ \ mol^{-1}$
- D$40.7 \ kJ \ mol^{-1}$
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