If the equilibrium constant (K) = 100, this reaction favors the (reactants/products) and proceeds (very little/almost to completion).
Equilibrium?

Question

Wyatt Atkins · Accepted Answer

Let's take the general equilibrium reaction: #wA+xBharryC+zD#

In which A, B, C and D are compounds and w,x,y,z are coefficients. To determine the equilibrium constant, we write:

#K=([C]^yxx[D]^z)/([A]^wxx[B]^x)color(white)(aaaa)color(white)(color(blue)(1.)/color(blue)(2.)#

The equilibrium constant says something about the proceeding of the reaction: does it favour the forward reaction or the backwards reaction? The blue numbers represent the concentration of the two sides:

We have given that #K=100#, this means that side 1 must be a larger number than number 2. Only then will K be larger than 1. This means that the combined concentration of side 1 (products) is larger than the combined concentration of side 2. Therefore the reaction is favoured to the right side (the product side). Since K=100 is pretty big, the reaction will probably go almost into completion.

By following this method, you can figure out that

K>>1 #color(white)(aa)# #color(blue)(|) #Product favored #color(white)(aaa)# #color(blue)(|)#Close to completion K>1 #color(white)(aaa)# #color(blue)(|) #Product favored#color(white)(aaa)# #color(blue)(|)# Very little K=1 #color(white)(aaa)# #color(blue)(|) #Equilibrium#color(white)(aaaaaaa)# #color(blue)(|)#- K<1 #color(white)(aaa)# #color(blue)(|) #Reactant favored#color(white)(aaa)# #color(blue)(|)#Very little K<<1 #color(white)(aa)# #color(blue)(|) #Reactant favored#color(white)(aaa)# #color(blue)(|)#Close to completion

Owen Ambrose · Answer

undefined If the equilibrium constant (K) = 100, this reaction favors the products and proceeds almost to completion at equilibrium.

Jeremiah Adams · Answer

undefined If the equilibrium constant (K) = 100, this reaction favors the products and proceeds almost to completion.

If the equilibrium constant (K) = 100, this reaction favors the (reactants/products) and proceeds (very little/almost to completion). Equilibrium?