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InterviewSolution
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11. Define รงa) State Variables (b) Absolute Temperature12. Define (af Green Chemistry (bEutrophication |
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Answer» 11.a)A state variable is one of the set of variables that are used to describe the mathematical "state" of a dynamical system. Intuitively, the state of a system describes enough about the system to determine its future behaviour in the absence of any external forces affecting the system. b)Absolute temperature, also called thermodynamic temperature, is the temperature of an object on a scale where 0 is taken as absolute zero. Absolute temperature scales are Kelvin (degree units Celsius) and Rankine (degree units Fahrenheit). ... 0K (absolute zero) = - 273.15 Celsius. 12.a)Green chemistry, also called sustainable chemistry, is an area of chemistry and chemical engineering focused on the designing of products and processes that minimize the use and generation of hazardous substances b)Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. |
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