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Welcome to eGyanKosh’s dedicated page for Unit-7: Entropy and Free Energy, part of the comprehensive study materials for IGNOU students in 2025. This resource is designed to enhance your understanding of two fundamental concepts in thermodynamics that are crucial for your academic success. Here, you’ll find a wealth of information, including detailed notes, examples, and practice questions, all available for free download. Dive into the intricacies of entropy and free energy, and equip yourself with the knowledge needed to excel in your studies and examinations. Whether you are preparing for assignments or seeking to reinforce your learning, our curated materials aim to support your educational journey.