The normal boiling point of methanol is 64.7 °c and the molar enthalpy of vaporization if 71.8 kj/mol. the value of ̇s when 1.11 mol of ch3oh (l) vaporizes at 64.7 °c is j/k.

The change in entropy of the system with the vaporization of methanol has been 236 J/K.

The boiling point has been defined as the amount of heat required to turn the liquid into steam. The molar enthalpy of vaporization has been the amount of heat required to convert 1 mole of water to steam.

The value of entropy () has been given as:

Where, the moles of methanol has been,

The enthalpy of vaporization of methanol (),

The temperature of the system (T) has been,

Substituting the values for the entropy  ()  of the reaction:

The change in entropy of the system with the vaporization of methanol has been 236 J/K.

Learn more about change in entropy, here:

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