The reaction for which the number of moles of gaseous products (np) is not equal to the number of moles of gaseous reactants (nR), has a different value of Kc and Kp.a) np = nR = 2 thus, Kp = Kcb) np = nR = 2 thus, Kp = Kcc) np = nR = 2 thus, Kp = Kcd) np = 2, nR = 1 thus, Kp not equal to Kc