Estimation of diffusivity in a gas mixture at low pressure

Example 2.13 Estimation of diffusivity in a gas mixture at low pressure Estimate the diffusivity of carbon dioxide in benzene at 318 K and 1 atm. 

Assumptions Assume that the critical value (D. )c obtained at P = 1 atm pressure can be used. 

The predictions may not be satisfactoiy as the critical value is estimated at a low pressure of 1 atm. The critical value may also obtained from Eq. (2.74) 

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