At 250 °c, the equilibrium constant kp for the reaction pcl5 (g) pcl3 (g) + cl2 (g) is 1.80. sufficient pcl5 is put into a reaction vessel to give an initial pressure of 2.74 atm at 250 °c. calculate the pressure of pcl5 after the system has reached equilibrium.
a. 1.50 atm
b. 1.24 atm
c. 4.24 atm
d. 0.94 atm
e. 1.12 atm

b. 1.24 atm

Explanation:

The chemical reaction for the decomposition of phosgene follows the equation:

At t = 0         2.74         0     0    

At    2.74-x           x      x

The expression for for the given reaction follows:

Putting values in above equation, we get:

So, the partial pressure for the components at equilibrium are:

Hence, the partial pressure of the at equilibrium is 1.24 atm

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation: