Question

32).Write the mathematical expressions of the following.

i) TC , PC and VC ii) vanderwaals constants a an32).Write the mathematical expressions of the following.

i) TC , PC and VC ii) vanderwaals constants a and​

Answer 1

Answer:

TC , PC and VC

Explanation:

Answer 2

To explain the behaviour of real gases, J.D van der Waals modified the ideal gas equation.

Explanation:

I)

• $T_{c}$: It refers to the critical temperature. It is defined as the temperature above which gas cannot be liquified however, high pressure may be applied. The formula in terms of van der Waals constant is : $T_{c} = \frac{8a}{27Rb}$.
• $P_{c}$ : It refers to as critical pressure. The formula in terms of van der Waals constant is $P_{c}= \frac{a}{27b^{2} }$.
• The formula for $V_{c}$ is $V_{c} = 3b$.

II)

• Formula for van der Waals constant'a' → $a = \frac{PV^{2}}{n^{2}} .$
• Formula for van der Waals constant'b"→ $b = \frac{V}{n}$.
• n= number of moles.