The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, K_c & K_m are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, K_p = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.)

ANS:C - K_c = K_p . RT = Km . RT/p

The relation among various mass transfer coefficients (M.T.C) for ideal gases is given by: 𝐾𝑐=𝐾𝑝=𝐾𝑚Kc​=Kp​=Km​ This equation states that for ideal gases, the mass transfer coefficients for equimolar counter diffusion with concentration (𝐾𝑐Kc​), for diffusion of a gas through a stagnant inert gas with pressure as the driving force (𝐾𝑝Kp​), and for equimolar counter diffusion with mole fraction (𝐾𝑚Km​) are all equal. Therefore, the correct option is: 𝐾𝑐=𝐾𝑝=𝐾𝑚Kc​=Kp​=Km​.