The pressure exerted by a column of liquid is equal to the product of the height of the column times the gravitational constat times the densty of the liquid P-ghd How highacolun of mathane d 0.79 giml) would be supportad by a pressure that supports a 713 mm column of mercuty (d= 136 ghml 9.7. 10 mm 12-10 mm 17 mm 41mm 713 mm