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FAQs on Hand Written Notes: Pure Substance - Thermodynamics - Mechanical Engineering

1. What is a pure substance in mechanical engineering?
Ans. A pure substance in mechanical engineering is a material that is composed of only one type of element or compound, with uniform and constant chemical composition throughout.
2. How is a pure substance different from a mixture in mechanical engineering?
Ans. A pure substance has a fixed chemical composition, while a mixture is composed of two or more substances that are physically combined and can be separated by physical means.
3. What are some examples of pure substances commonly used in mechanical engineering?
Ans. Some examples of pure substances in mechanical engineering include water, iron, copper, and aluminum.
4. Why is it important to understand the properties of pure substances in mechanical engineering?
Ans. Understanding the properties of pure substances is crucial in mechanical engineering as it helps in designing and analyzing the behavior of materials under different conditions, ensuring the efficiency and reliability of mechanical components and systems.
5. How can the purity of a substance be determined in mechanical engineering?
Ans. The purity of a substance in mechanical engineering can be determined through various analytical techniques such as spectroscopy, chromatography, and thermal analysis, which help in identifying the presence of impurities and assessing the quality of the material.
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