00:01
To calculate the equilibrium partial pressure for our iodine gas here above solid iodine.
00:08
So in order to do so, we are looking to find our partial pressure of just the iodine gas.
00:14
So let's start by solving, or let's start by calculating our kp here.
00:21
So the kp is equal to the partial pressures of the products over the reactants.
00:27
Because iodine solid is a solid, it will not have a partial pressure.
00:30
Therefore our kp will be equal to our partial pressure of our gaseous iodine.
00:37
So this will save us a step later down the line.
00:41
In order to find our kp and therefore find our partial pressure of our iodine, we're going to use the equation that delta g standard is equal to negative r t ln of kp.
00:59
So we know that our delta g here is going to equal 19 .4 kilojoules per mole because this is the energy of formation of our iodine...