The pressure exerted by a column of liquid is equal to the product of the height of the column times the gravitational constant times the density of the liquid, P = ghd. How high a column of methanol (d = 0.79 g/mL) would be supported by a pressure that supports a 713 mm column of mercury (d = 13.6 g/mL)? A) 1.2 × 10⁴mm B) 9.7 × 10³mm C) 17 mm D) 713 mm E) 41 mm

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Quizplus · Accepted Answer

The pressure exerted by a column of liquid is equal to the product of the height of the column times the gravitational constant times the density of the liquid, P = ghd. So, the height of the column of methanol that would be supported by the same pressure as a 713 mm column of mercury is:h = P/(gd) = (713 mm * 13.6 g/mL)/(9.81 m/s^2 * 0.79 g/mL) = 1.2 × 10^4 mm

The Pressure Exerted by a Column of Liquid Is Equal