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Considen the vander waals constants a and b for the following gases -

Gas Ar Ne Kr Xe
a 1.3 0.2 5.1 4.1
b 3.2 1.7 1.0 5.0

which gas is expeckd to have the highest erritical temperaction?
 

Option: 1

kr


Option: 2

xe


Option: 3

Ar


Option: 4

Ne


Answers (1)

best_answer

critical temperature is the temperature of a g as above which cannot be liquefied what ever high the pressione may be. The KEO gas molecules above this temperature is sufficient enough to overcome the attractive ferris. It is represented as T_c.

\mathrm{T_c=\frac{8 a}{27 R b} }
for An,

\mathrm{T_C=\frac{8 \times 1.3}{27 \times 8.314 \times 3.2}=0.0144 }
for Ne,

\mathrm{T_C=\frac{8 \times 0.2}{27 \times 8.314 \times 1.7}=0.0041 }

for Kr

 \mathrm{T_C=\frac{8 \times 5.1}{27 \times 8.314 \times 1.0}=0.18 }

for xe,

\mathrm{T_c=\frac{8 \times 4.1}{27 \times 8.314 \times 5.0}=0.02 }

The value of \mathrm{T_c} is highest for kn

Posted by

Nehul

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