The following two-step process has equilibrium constants K1 and K2. Step 1: H2(g) + ICl(g) → HI(g) + HCl(g) K1 Step 2: HI(g) + ICl(g) → HCl(g) + I2(g) K2 Overall : H2(g) + 2ICl(g) → 2HCl(g) + I2(g) K3 What is the expression for the equilibrium constants for the overall reaction, K3?

Answer : The equilibrium constant expression for overall reaction will be:

Explanation:

The given chemical reactions are:

Step 1 : ;  

Step 2 : ;    

Overall : ;  

By the addition of reaction 1 and reaction 2, we get the overall reaction.

As we know that, when we are adding reactions then their equilibrium constant will be multiplied.

Thus, the equilibrium constant expression for overall reaction will be:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current