Consider a solution containing liquids A and B where the mole fraction of B is 0.60. Assuming ideality, calculate the mole fraction of B in the vapor at equilibrium with this solution at 25°C. (The vapor pressures of pure liquid A and B at 25°C are 147.0 torr and 400.0 torr, respectively.) Select one: a. 0.36 b. 0.76 c. 0.25 d. 0.80 e. 0.20