- #1

- 239

- 17

- Homework Statement
- ##8,5*10^-2## moles of gaseous ##PCL_5## are inserted in a 0,50 L volume reactor. At 540 K, the equilibrium ##PCL_5 <->PCL_3+CL_2## , is achieved and the total pressure in the reactor is 11.10 atm. Calculate Kp at equilibrium at this temperature.

- Relevant Equations
- Equilibrium

I am stuck, i have compute the total moles as :

## n_{tot}=\frac{P_{tot*V}}{RT}##=0,125 mol

##Kp= \frac{P_{tot}\frac {n_{PCL_3}}{n_{tot}}*P_{tot}\frac {n_{CL_2}}{n_{tot}}}{P_{tot} \frac {n_{PCL_3}}{n_{tot}}}=\frac {P_{tot}}{n_{tot}}*\frac {n_{PCL_3}n_{CL_2}}{n_{PCL_5}}##

From here, can't go forward, am i missing something to consider?

## n_{tot}=\frac{P_{tot*V}}{RT}##=0,125 mol

##Kp= \frac{P_{tot}\frac {n_{PCL_3}}{n_{tot}}*P_{tot}\frac {n_{CL_2}}{n_{tot}}}{P_{tot} \frac {n_{PCL_3}}{n_{tot}}}=\frac {P_{tot}}{n_{tot}}*\frac {n_{PCL_3}n_{CL_2}}{n_{PCL_5}}##

From here, can't go forward, am i missing something to consider?