For example, suppose we have the following reaction in which gas A react with gas B to produce gas C and gas D, where it lowercase A-B-C and D are the coefficients of each respective atom that represent the moles of each atom. For example, lowercase a number of moles of A gas reacts with B number of moles of B gas produces C number of moles of C gas and B number of moles of D gas. Now our equilibrium constant for this gaseous reaction is the following our equilibrium constant KP is equal to the partial pressure of our C of our gas product C to the C power. Now that's lowercase C, an abia should represent it with the black marker. So lowercase C times the partial pressure of D gas to the D coefficient. So d exponent divided by the partial pressure of this gas A to the lowercase A power times the partial pressure of our B reactants our gas to the B lowercase B power.