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  • Thermochemistry. How many kilojoules are needed?

    How many kilojoules of heat are required to raise the temperature of 48.7 grams of ethanol (C2H5OH, 46.1 g/mol) from 0 °C to °25 C and then vaporize it completely?

    The heat capacity of C2H5OH at 25°C = 112.4 J/(mol.K)

    The molar heat of vaporization of C2H5OH = +38.56 kJ/mol

    3 AnswersChemistry2 years ago