The partial vapor pressure of 0.1 molal solution of B in liquid A is 60 kPa at 300 K. The partial vapor pressure (in kPa) of a solution containing B with mole fraction of 0.1 in liquid A at 300 K is ______. (Assume the solute B obeys Henry's law. The molar mass of A is 80 g mol-1.) (rounded off to three decimal places)