The relationship between condensation and isothermal compression
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What are the differences and similarities between condensation and isothermal compression? I seek advice from experts in this field
Condensation involves a phase change, but isothermal compression does not necessarily involve a phase change!
Is that all? Is there anything more specific?
Is that all? Is there anything more specific?
Isothermal compression is a process in which external work is done on a closed system; according to the first law of thermodynamics, heat is released by the system, and part of the gas can be liquefied. Condensation is an exothermic process in which a working fluid changes from a gaseous state to a liquid state, and it can occur without the need for work.
I think condensation can be achieved through heat exchange
It’s a process of expansion when it’s hot and contraction when it’s cold; it can be considered spontaneous compression, not forced?
Cold contraction occurs when the temperature of the working fluid is higher than that of the surrounding environment, with heat transferring from the hotter object to the colder one. No mention is made here of any external work being done; I don’t understand why it is considered a compression process. Thermal expansion occurs when the temperature of the working substance is lower than that of the surrounding environment, and heat is transferred to the working substance; at this point the substance is in a relatively disordered state. If work is to be done, it is necessary to cool the substance, which requires human intervention, so it is not a spontaneous process. A working fluid requires ordered low thermal energy.