Ethanol, ch.0, is common beverage alcohol. at its boiling point of 78.5 °c, the enthalpy of vaporization of ethanol is 38.6 kj/mol. how much heat is required to vaporize 250 g of ethanol at 78.5 °c? ans = 209.8 kj

209.8 kilo Joules heat is required to vaporize 250 g of ethanol at 78.5 °C.

Explanation:

Mass of an ethanol = 250 g

Molar mass of ethanol = 46 g/mol

Moles of an ethanol =

Enthalpy of vaporization of ethanol =

Heat required to vaporize 250 g of ethanol at 78.5 °C : Q

Q = 209.8 kilo Joules

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