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Question: Thecritical constants P<sub>C</sub>& T<sub>C</sub> for methane are 45 atm and 189 K. The correct sta...

Thecritical constants PC& TC for methane are 45 atm and 189 K. The correct statement is –

A

VC = 2.4 L

B

b = 0.04 L/mol

C

VC = 0.8 L

D

b = 0.8 L/mol

Answer

b = 0.04 L/mol

Explanation

Solution

PC = a27b2\frac{a}{27b^{2}} , TC = 8a27Rb\frac{8a}{27Rb}

Ž PCTC\frac{P_{C}}{T_{C}} = R8b\frac{R}{8b} Ž b = 0.04 L/mol.