Heat of Phase Changes
Über den Vortrag
Der Vortrag „Heat of Phase Changes“ von Jared Rovny, PhD ist Bestandteil des Kurses „Thermodynamics and Thermochemistry“.
Quiz zum Vortrag
Which of the following statements is FALSE?
- The heat of fusion per mol and the heat of vaporization per mol of a substance are the same
- The temperature of a substance is the same on either side of the phase change, but the energies are different
- At phase transition, heat is added without changing the temperature of the substance
- The heat required to melt a solid is the heat of fusion
- The heat required to vaporize a liquid is the heat of vaporization
How much heat is needed to vaporize n mol of a substance at its boiling point if its vaporization heat per mol is ΔHᵥ? Choose the best answer.
- nΔHᵥ
- Hᵥ
- nΔHᵥ + ncΔT
- 2nΔHᵥ
- ncΔT
Approximately how much heat is needed to turn 1 kg of 0°C ice into 1 kg of 100°C water vapor? (For water: ΔH(fusion) = 334 J/g, ΔH(vaporization) = 2260 J/g, c = 4.18 J/(g.K))
- 3,010 kJ
- 2,000 kJ
- 2,800 kJ
- 420 kJ
- 2,590 kJ
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Dozent des Vortrages Heat of Phase Changes
Jared Rovny, PhD
Dr. Jared Rovny has been a Lecturer at Yale University in Connecticut, USA since 2013.
He obtained his PhD in Physics from Yale University in 2019. He was awarded the D. Allan Bromley Graduate Fellowship in Physics in 2019 and the Princeton Quantum Institute Postdoctoral Fellow in 2020.
Currently, he works with Yale's Center for Teaching and Learning at Yale University.
Due to his achievements, he earned the Yale College Prize Teaching Fellowship for his work in PHYS 171 (University Physics for the Life Sciences).
Within Lecturio, Dr. Rovny teaches courses on Physics.
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