Thermodynamic Properties: Why We Need Them & How to Calculate

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Extensive properties in thermodynamics are crucial as they provide insights into the system's overall characteristics, such as mass and volume. Specific values of thermodynamic properties, like specific heat capacity, are essential for calculating energy requirements in processes, such as heating water. Understanding these properties helps in accurately determining how much energy is needed for temperature changes. Density, as an intensive property, remains constant regardless of the amount of substance, exemplified by comparing 1 kg and 2 kg of water at standard atmospheric temperature and pressure. Overall, these properties are fundamental for analyzing and predicting the behavior of thermodynamic systems.
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Why should we bother about Extensive properties in Thermodynamic systems? and
Why do we need specific value of some thermodynamic property? and
what does it tell us about the system? Eg. specific heat capacity?
How density of a thermodynamic system is a intensive property?
 
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It's hard to answer your questions because they are not very specific. What is it exactly you don't understand?

manimaran1605 said:
Why should we bother about Extensive properties in Thermodynamic systems?
Why not?

manimaran1605 said:
Why do we need specific value of some thermodynamic property?
Because they characterise the system?

manimaran1605 said:
what does it tell us about the system? Eg. specific heat capacity?
For instance, how can you calculate how much energy is needed to heat one kg of water from 20°C to 30°C if you don't know its heat capacity?

manimaran1605 said:
How density of a thermodynamic system is a intensive property?
Take two systems, one being 1 kg of water at SATP, the other 2 kg of water at SATP. Is the density different?
 
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see: "Extensive Quantities in Thermodynamics" DOI= 10.1088/0143-0807/35/3/035017 (published in 2014)
 

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