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Claussius Clapeyron and the Second Law of Thermodynamics


Two video lectures titled, ‘The Second Law of Thermodynamics – Clausius Clapeyron Relation’ and ‘Clausius Clapeyron Relation (Contd.)’ from the e-learning course, ‘Introduction to Atmospheric Science’ developed by C Balaji, IIT Madras, for National Programme on Technology Enhanced Learning (NPTEL), India. These video lectures provide details about the second law of thermodynamics, Clausius Clapeyron equation, Carnot cycle, and entropy,. It also discusses radiation laws, radiative transfer, Prevost’s theory, wave theory, particle theory, and black body behaviour.

Students will learn about the Clausius Clapeyron equation, how saturated vapour pressure changes with temperature, and the impact of temperature and pressure changes on water vapour and earth’s climate. They will also learn how to calculate the reversible and adiabatic process called the isentropic process and quasistatic processes.

A transcript of the lecture is also provided.

Use this tool to help your students find answers to:

  1. How does climate change impact the biosphere?
  2. What is the role of the biosphere in determining the climate of planet Earth?
About Tool
Tool Name Lecture – 29: The Second Law of Thermodynamics – Clausius Clapeyron Relation and Lecture – 30: Clausius Clapeyron Relation (Contd.)
Discipline Physics, Earth Sciences
Topic(s) in Discipline Climate Physics, Atmospheric Sciences, Atmospheric Physics, Second Law of Thermodynamics, Thermodynamics, Clausius Clapeyron equation, Radiative Transfer, Prevost’s Theory, Atmosphere
Climate Topic Climate and Atmosphere, Climate Literacy
Type of tool Video (42 mins and 45 mins)
Grade Level Undergraduate, Graduate
Location Global
Language English
Translation      –
Developed by C Balaji, IIT Madras
Hosted at NPTEL
Access Online
Computer Skills Basic


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