Solved: Ethanol boils at 784degc and the enthalpy of vaporization, Physics

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Ethanol boils at 784degc and the enthalpy of vaporization

1. Ethanol boils at 78.4°C and the enthalpy of vaporization of ethanol is 42.4 kJ mol-1. Calculate the entropy of vaporization of ethanol.

2. Calculate the entropy change for the conversion of following :

(a) 1 g ice to water at 273 K, AHf for ice = 6.025 kJ mol-1.

(b) 36 g water to vapour at 373 K; AHy for H20 = 40.63 kJ mol-1.

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Physics: Ethanol boils at 784degc and the enthalpy of vaporization

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Physics: Ethanol boils at 784degc and the enthalpy of vaporization

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