Liquid acetone (C3H6O, 58.08 g/mol, “nail polish remover”) has a heat capacity of 2.14 J/(g K) and boils at 56.0°C. It’s enthalpy of vaporization is 31 kJ/mol. How much energy is needed to heat 100.0 g of acetone from room temperature (25.0 °C) to its boiling point and then vaporize it?
Liquid acetone (C3H6O, 58.08 g/mol, “nail polish remover”) has a heat capacity of 2.14 J/(g K) and boils at 56.0°C. It’s enthalpy of vaporization is 31 kJ/mol. How much energy is needed to heat 100.0 g of acetone from room temperature (25.0 °C) to its boiling point and then vaporize it?
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.45PAE: 9.45 What happens to the temperature of a material as it undergoes an endothermic phase change? If...
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Liquid acetone (C3H6O, 58.08 g/mol, “nail polish remover”) has a heat capacity of 2.14 J/(g K) and boils at 56.0°C. It’s enthalpy of vaporization is 31 kJ/mol. How much energy is needed to heat 100.0 g of acetone from room temperature (25.0 °C) to its boiling point and then vaporize it?
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Step 1: Determine the energy to heat liquid acetone to its vapor from the given data:
VIEWStep 2: Calculation for required heat to change temperature of liquid acetone from 25.0 oC to 56.0 oC:
VIEWStep 3: Calculation for heat required to change phase of liquid acetone and total heat energy:
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