Question

a) The K-ratio is used to calculate the equilibrium distribution of a component in a mixture between vapor and liquid phases. It can be determined by using two method.

Determine the K-ratio. For n-octane at 100°C at 0.1 MPa

i) Using Raoult’s Law

ii) using the de Priester chart. (Show the chart in your answer.)

2. Determine the bubble point temperature (lower limit to the flash tank temperature)and the dew point temperature (upper limit to the flash tank temperature) for a mixture of n-hexane, n-heptane, and n-octane in a 0.33:0.33:0.34 molar ratio at 0.1 MPa .

3. For an isothermal flash at 100°C and 0.1 MPa what is the V/F ratio, for the mixture of part b, and what are the compositions of the vapor and liquid products.

Answer 1

using antoien equation and roults law and de preister chart we can find the required K value

as pr guidelines only one qs is to be solved for remainng qs please post separately

for any doubts write in comments