Mixing Gases: Take two containers, each with volume 0.1 m3, containing ideal gases of monatomic He at T= 126 K and diatomic N2 at T = 245 K, respectively. Each gas is at pressure p= 106 Pa. A valve is opened allowing these two gases to mix. They are kept thermally isolated from the outside. Total Energy, Ui=400000 J and Uf=400000J
a)What is the final temperature of the mixed gas? T =
b) Now we want to calculate the change in entropy during this process. What is the change of dimensionless entropy solely due to the fact that the gases have more volume accessible? ÎÏvol =
cWhat is the change of dimensionless entropy solely due to the fact that the gasses' temperatures have changed?
ÎÏtemp =
d)What is then the total change of dimensionless entropy? eq:ÎÏ =ÎÏvol+ÎÏtemp
ÎÏ =
e)What is the change of the standard entropy in this process? Eq:ÎS=kÎÏ
ÎS =
Mixing Gases: Take two containers, each with volume 0.1 m3, containing ideal gases of monatomic He at T= 126 K and diatomic N2 at T = 245 K, respectively. Each gas is at pressure p= 106 Pa. A valve is opened allowing these two gases to mix. They are kept thermally isolated from the outside. Total Energy, Ui=400000 J and Uf=400000J
a)What is the final temperature of the mixed gas? T =
b) Now we want to calculate the change in entropy during this process. What is the change of dimensionless entropy solely due to the fact that the gases have more volume accessible? ÎÏvol =
cWhat is the change of dimensionless entropy solely due to the fact that the gasses' temperatures have changed?
ÎÏtemp =
d)What is then the total change of dimensionless entropy? eq:ÎÏ =ÎÏvol+ÎÏtemp
ÎÏ =
e)What is the change of the standard entropy in this process? Eq:ÎS=kÎÏ
ÎS =
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