Figure displays the plot of the compression factor `Z` veres `p` for a few gases Which of the following statements is//are correct for a van-der waals gas:
A
The plot I is applicable provided the vander waals constant a is negligible.
B
The plot II is a applicable provided the vander waals constant `b` is negligible.
C
The plot III is applicable provided the vander waals constants `a` and `b` are negligible.
D
The plot IV is applicable provided the temperature of the gas is much higher than its critical temperature
Text Solution
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The correct Answer is:
A, B, C
The vander waals equation of state is: (for 1 mole of gas) `(P +(a)/(V_(m)^(2))) (V_(m) -b) = RT` When a is negligible, then `Z = (pV_(m))/(RT) = 1+(b)/(RT) P` that is `Z` increases with increaser in `p`. when `b` is negligible, then `Z = (pV_(m))/(RT) = 1 - (a)/(VRT)` increasing `p` implies decreases in `V`, which is turn, implies increase in the value of `a//VRT` and hence decrease in the value of `Z`. The curve IV is applicable provided temperature of the gas is near bit larger than it's critical temperature Hence, teh choice (a),(b) and (c ) are correct.
Figure displays the plot of the compression factor Z verses pfor a few gases. Which of the following statements is // are correct for a van-dar waals gas :
According the van der Waal's theory of non-ideal gases, which of the following statement is/are correct?
For real gases (van der waals ' gas )
Which of the following represents the units of van der Waal constant a ?
Regarding the van der Waals constant which of the following is/are correct?
Select the correct statement with reference to van der Waal's ga.
Which of the following factors are responsible for origination of van der Waals forces?
