The diagram represents three vessels that contain the same amount of Argon gas, but with different temperatures and volumes.?

2018-05-27 3:05 pm
Assuming ideal gas behaviour, nominate which one or more of the vessels has gas with:

(a) the highest pressure

(b) the highest average kinetic energy


chose from:
I
II
III
I & II
I & III
all 3

回答 (3)

2018-05-27 8:23 pm
(a)
Combined gas law: PV/T = constant
Then, P = constant × (T/V)
Hence, P ∝ T/V
The higher the temperature and the smaller the volume, the higher the pressure is.

I and II have the highest temperature, while I and III have the smaller volume.
Hence, I has the greatest pressure.

The answer: I


====
(b)
The higher the temperature, the highest average kinetic energy of the gases particles is.

I and II have the highest temperature. Hence, I and II have the greatest average kinetic energy.

The answer: I & II
2018-05-27 5:16 pm
a)
Supposing containers I and III have the same volume, I has the highest pressure.

b)
I & II have the highest average KE
2018-05-27 3:07 pm
Ok


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