Isothermal system
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Re: Isothermal system
Because the surroundings is basically a vacuum. The system is expanding but there is no heat transfer between the system and the surroundings so the surroundings basically remains unchanged.
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Re: Isothermal system
Work = 0 in free expansion because there is no external pressure applied, so P=0 and therefore w=0. Since ΔU = 0, that means that q=0 as well, so no heat is transferred into the surroundings.
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Re: Isothermal system
Hi Tiffany!
Because q=0 as there is no transfer of heat or change in temp (isothermal) there will be no change in entropy of the molecules.
Because q=0 as there is no transfer of heat or change in temp (isothermal) there will be no change in entropy of the molecules.
Re: Isothermal system
Work = 0 in free expansion because there is no external pressure applied, so P=0 and therefore w=0. Since ΔU = 0, that means that q=0 as well, so no heat is transferred into the surroundings.
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Re: Isothermal system
The term free expansion implies work is = 0 and in that case q would also be zero as the deltaU value needs to remain 0
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